JP2009280649A - Ionic water-soluble polymer comprising powder, process for producing it, and its usage - Google Patents
Ionic water-soluble polymer comprising powder, process for producing it, and its usage Download PDFInfo
- Publication number
- JP2009280649A JP2009280649A JP2008131705A JP2008131705A JP2009280649A JP 2009280649 A JP2009280649 A JP 2009280649A JP 2008131705 A JP2008131705 A JP 2008131705A JP 2008131705 A JP2008131705 A JP 2008131705A JP 2009280649 A JP2009280649 A JP 2009280649A
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- Prior art keywords
- water
- soluble polymer
- ionic water
- ionic
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920003169 water-soluble polymer Polymers 0.000 title claims abstract description 123
- 239000000843 powder Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 title abstract description 5
- 239000010802 sludge Substances 0.000 claims abstract description 65
- 239000000178 monomer Substances 0.000 claims abstract description 64
- 239000007762 w/o emulsion Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 125000002091 cationic group Chemical group 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 13
- 238000005469 granulation Methods 0.000 claims abstract 2
- 230000003179 granulation Effects 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 239000002994 raw material Substances 0.000 claims description 28
- 239000001257 hydrogen Substances 0.000 claims description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 18
- 125000000129 anionic group Chemical group 0.000 claims description 17
- 229920000642 polymer Polymers 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000440 bentonite Substances 0.000 claims description 9
- 229910000278 bentonite Inorganic materials 0.000 claims description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 7
- 238000001694 spray drying Methods 0.000 claims description 7
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000008119 colloidal silica Substances 0.000 claims description 3
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 230000004931 aggregating effect Effects 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 abstract description 45
- 239000000243 solution Substances 0.000 abstract description 18
- 230000018044 dehydration Effects 0.000 abstract description 9
- 238000006297 dehydration reaction Methods 0.000 abstract description 9
- 239000000701 coagulant Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004945 emulsification Methods 0.000 abstract description 2
- 230000001747 exhibiting effect Effects 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 70
- 239000000123 paper Substances 0.000 description 39
- 230000000052 comparative effect Effects 0.000 description 31
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 16
- 238000004448 titration Methods 0.000 description 16
- 238000003756 stirring Methods 0.000 description 11
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 10
- -1 dimethylaminoethyl Chemical group 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 239000004744 fabric Substances 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 8
- 229920006318 anionic polymer Polymers 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 229920002554 vinyl polymer Polymers 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 description 6
- 229940048053 acrylate Drugs 0.000 description 6
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 229920000831 ionic polymer Polymers 0.000 description 5
- 230000000379 polymerizing effect Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000003999 initiator Substances 0.000 description 4
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 4
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 description 4
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000004380 ashing Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000001804 emulsifying effect Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000001593 sorbitan monooleate Substances 0.000 description 3
- 235000011069 sorbitan monooleate Nutrition 0.000 description 3
- 229940035049 sorbitan monooleate Drugs 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000004147 Sorbitan trioleate Substances 0.000 description 2
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920006317 cationic polymer Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 235000019337 sorbitan trioleate Nutrition 0.000 description 2
- 229960000391 sorbitan trioleate Drugs 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 2
- FVQMJJQUGGVLEP-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOOC(C)(C)C FVQMJJQUGGVLEP-UHFFFAOYSA-N 0.000 description 1
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- 229940058015 1,3-butylene glycol Drugs 0.000 description 1
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 description 1
- ZVUAMUKZHFTJGR-UHFFFAOYSA-N 1-piperazin-1-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCNCC1 ZVUAMUKZHFTJGR-UHFFFAOYSA-N 0.000 description 1
- VBZBISQOWJYWCC-UHFFFAOYSA-N 2-(2-carboxypropan-2-yldiazenyl)-2-methylpropanoic acid Chemical compound OC(=O)C(C)(C)N=NC(C)(C)C(O)=O VBZBISQOWJYWCC-UHFFFAOYSA-N 0.000 description 1
- AVTLBBWTUPQRAY-UHFFFAOYSA-N 2-(2-cyanobutan-2-yldiazenyl)-2-methylbutanenitrile Chemical compound CCC(C)(C#N)N=NC(C)(CC)C#N AVTLBBWTUPQRAY-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 1
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- PFHOSZAOXCYAGJ-UHFFFAOYSA-N 2-[(2-cyano-4-methoxy-4-methylpentan-2-yl)diazenyl]-4-methoxy-2,4-dimethylpentanenitrile Chemical compound COC(C)(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)(C)OC PFHOSZAOXCYAGJ-UHFFFAOYSA-N 0.000 description 1
- VMSBGXAJJLPWKV-UHFFFAOYSA-N 2-ethenylbenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1C=C VMSBGXAJJLPWKV-UHFFFAOYSA-N 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- DWSMBORYMHSAEA-UHFFFAOYSA-N 3-[(4-amino-4-iminobutan-2-yl)diazenyl]butanimidamide;dihydrochloride Chemical compound Cl.Cl.NC(=N)CC(C)N=NC(C)CC(N)=N DWSMBORYMHSAEA-UHFFFAOYSA-N 0.000 description 1
- VFXXTYGQYWRHJP-UHFFFAOYSA-N 4,4'-azobis(4-cyanopentanoic acid) Chemical compound OC(=O)CCC(C)(C#N)N=NC(C)(CCC(O)=O)C#N VFXXTYGQYWRHJP-UHFFFAOYSA-N 0.000 description 1
- MKTOIPPVFPJEQO-UHFFFAOYSA-N 4-(3-carboxypropanoylperoxy)-4-oxobutanoic acid Chemical compound OC(=O)CCC(=O)OOC(=O)CCC(O)=O MKTOIPPVFPJEQO-UHFFFAOYSA-N 0.000 description 1
- IRQWEODKXLDORP-UHFFFAOYSA-N 4-ethenylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=C)C=C1 IRQWEODKXLDORP-UHFFFAOYSA-N 0.000 description 1
- RTANHMOFHGSZQO-UHFFFAOYSA-N 4-methoxy-2,4-dimethylpentanenitrile Chemical compound COC(C)(C)CC(C)C#N RTANHMOFHGSZQO-UHFFFAOYSA-N 0.000 description 1
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 1
- 240000001931 Ludwigia octovalvis Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000012726 Water-in-Oil Emulsion Polymerization Methods 0.000 description 1
- TTZKGYULRVDFJJ-GIVMLJSASA-N [(2r)-2-[(2s,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-[(z)-octadec-9-enoyl]oxyethyl] (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1O TTZKGYULRVDFJJ-GIVMLJSASA-N 0.000 description 1
- PZQBWGFCGIRLBB-NJYHNNHUSA-N [(2r)-2-[(2s,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-octadecanoyloxyethyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCCCCCCCCCCCC)[C@H]1OC[C@H](O)[C@H]1O PZQBWGFCGIRLBB-NJYHNNHUSA-N 0.000 description 1
- DNTMJTROKXRBDM-UUWWDYFTSA-N [(2r,3r,4s)-2-[(1r)-1-hexadecanoyloxy-2-hydroxyethyl]-4-hydroxyoxolan-3-yl] hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)O[C@H](CO)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCCCCCCCCCC DNTMJTROKXRBDM-UUWWDYFTSA-N 0.000 description 1
- MZVQCMJNVPIDEA-UHFFFAOYSA-N [CH2]CN(CC)CC Chemical group [CH2]CN(CC)CC MZVQCMJNVPIDEA-UHFFFAOYSA-N 0.000 description 1
- KYIKRXIYLAGAKQ-UHFFFAOYSA-N abcn Chemical compound C1CCCCC1(C#N)N=NC1(C#N)CCCCC1 KYIKRXIYLAGAKQ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- 239000012935 ammoniumperoxodisulfate Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- GYCUTPICSQQWKP-UHFFFAOYSA-N bis[2-(5-methyl-4,5-dihydro-1h-imidazol-2-yl)propan-2-yl]diazene Chemical compound N1C(C)CN=C1C(C)(C)N=NC(C)(C)C1=NCC(C)N1 GYCUTPICSQQWKP-UHFFFAOYSA-N 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
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- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- MLGWTHRHHANFCC-UHFFFAOYSA-N prop-2-en-1-amine;hydrochloride Chemical compound Cl.NCC=C MLGWTHRHHANFCC-UHFFFAOYSA-N 0.000 description 1
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- 238000010298 pulverizing process Methods 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
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- 229940047670 sodium acrylate Drugs 0.000 description 1
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- 235000019254 sodium formate Nutrition 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
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- 235000010265 sodium sulphite Nutrition 0.000 description 1
- SZHIIIPPJJXYRY-UHFFFAOYSA-M sodium;2-methylprop-2-ene-1-sulfonate Chemical compound [Na+].CC(=C)CS([O-])(=O)=O SZHIIIPPJJXYRY-UHFFFAOYSA-M 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 235000011071 sorbitan monopalmitate Nutrition 0.000 description 1
- 239000001570 sorbitan monopalmitate Substances 0.000 description 1
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- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Paper (AREA)
Abstract
Description
本発明は、粉末からなるイオン性水溶性高分子とその製造方法および用途に関するものである。さらに詳しくは、特定のイオン性を発現する粉末からなるイオン性水溶性高分子とその製造方法および用途に関するものである。 The present invention relates to an ionic water-soluble polymer comprising a powder, a method for producing the same, and a use thereof. More specifically, the present invention relates to an ionic water-soluble polymer composed of a powder that expresses a specific ionicity, a production method thereof, and an application.
従来、イオン性の水溶性高分子は水分散性スラリーや水溶液の増粘剤、分散剤、紙力増強剤、汚泥脱水剤、製紙原料の歩留向上剤、抄紙時の濾水性向上剤などさまざまな分野で使用されており、その形態は、粉末、ペースト状水溶液、油中水型エマルジョンあるいは水性分散液など様々である。 Conventionally, ionic water-soluble polymers are various such as water-dispersible slurry, aqueous solution thickener, dispersant, paper strength enhancer, sludge dewatering agent, yield improver for papermaking raw materials, and drainage improver for papermaking. There are various forms such as powders, pasty aqueous solutions, water-in-oil emulsions or aqueous dispersions.
汚泥の脱水処理の分野においては、汚泥の発生量の増加、汚泥性状の悪化による難脱水化が進んでおり、汚泥脱水性の改善、脱水ケーキの含水率の低下が強く求められており、製紙工業の分野では、古紙配合量の増加による原料事情の悪化、抄紙速度の増大による生産性の向上などが求められている。 In the field of sludge dewatering treatment, the amount of sludge generated is increasing and the difficulty of dewatering is advancing due to the deterioration of sludge properties, and there is a strong demand for improved sludge dewaterability and reduced moisture content of dewatered cakes. In the industrial field, there are demands for deterioration of raw material conditions due to an increase in the amount of used paper, and improvement in productivity due to an increase in papermaking speed.
このような要望に対し、イオン性の水溶性高分子は様々な改良が進められてきた。特許文献１には、架橋されたカチオン性の油中重合性分散体の汚泥への適用が例示されている。特許文献２には、電荷内包率３５％以上のビニル重合系架橋性水溶性イオン性高分子と、電荷内包率５以上、３５％未満のビニル重合系架橋性水溶性イオン性高分子を組み合わせた汚泥脱水剤としての適用が例示されている。 In response to such demands, various improvements have been made to ionic water-soluble polymers. Patent Document 1 exemplifies application of a crosslinked cationic polymerizable dispersion in oil to sludge. Patent Document 2 is a combination of a vinyl polymerization crosslinkable water-soluble ionic polymer having a charge inclusion rate of 35% or more and a vinyl polymerization crosslinkable water soluble ionic polymer having a charge inclusion rate of 5 or more and less than 35%. The application as a sludge dewatering agent is illustrated.
また、特許文献３には、架橋された水溶性カチオン性の単量体重合物の油中水型エマルジョンを歩留向上剤および濾水性向上剤として抄紙工程に適用する方法が例示されている。 Patent Document 3 exemplifies a method in which a water-in-oil emulsion of a crosslinked water-soluble cationic monomer polymer is applied to a papermaking process as a yield improver and a drainage improver.
一方で、粉末状のイオン性水溶性高分子は、その他の形態のものと比較し疎水性溶媒、水あるいは分散剤といった不純物が少ない特徴があり、輸送コストや環境負荷の面で優位性があるが、改良の柔軟性が小さいといった欠点がある。 On the other hand, powdered ionic water-soluble polymers are characterized by fewer impurities such as hydrophobic solvents, water, and dispersants compared to other forms, and are superior in terms of transportation costs and environmental impact. However, there is a drawback that the flexibility of improvement is small.
特許文献４には、カチオン性水溶性高分子の噴霧乾燥物について記載されており、特許文献５には、噴霧乾燥により得られた架橋されたカチオン性水溶性高分子と凝集剤としての適用が例示されている。 Patent Document 4 describes a spray-dried product of a cationic water-soluble polymer, and Patent Document 5 discloses a crosslinked cationic water-soluble polymer obtained by spray drying and application as a flocculant. Illustrated.
これらの噴霧乾燥で得られる粉末状のイオン性水溶性高分子について電荷内包率についての記載は無く、考慮の範疇外であることが明白である。また、一般的に油中水型エマルジョン状のイオン性水溶性高分子は水に溶解して使うことが多く、含まれる疎水性溶媒を都合よく分散させるためにＨＬＢ１０以上の界面活性剤を含有することが多いが、イオン性水溶性高分子の機能とは無関係であり、環境への負荷を高める一因である。
本発明の目的は、輸送コストや環境負荷の小さいイオン性水溶性高分子とその製造法を提供することであり、凝集剤用途さらに詳しくは汚泥の脱水処理用途、製紙スラッジの脱水処理用途と製紙原料に添加して抄紙する方法に対して優れた機能を発揮する粉末からなるイオン性水溶性高分子を提供することにある。 An object of the present invention is to provide an ionic water-soluble polymer having a low transportation cost and low environmental load and a method for producing the same, and a flocculant application. More specifically, sludge dewatering treatment, paper sludge dewatering treatment and papermaking. An object of the present invention is to provide an ionic water-soluble polymer comprising a powder that exhibits an excellent function with respect to a method of making paper by adding to a raw material.
本発明者らは鋭意検討の結果、驚くべきことに特定のイオン性を発現する水溶性高分子が汚泥の脱水処理用途、製紙スラッジの脱水処理用途と製紙原料に添加して抄紙する方法に対して特に優れた機能を発揮し、界面活性剤により水に非混和性有機液体を連続相、カチオン性単量体および複数の不飽和二重結合を有する多官能性単量体を必須として含む単量体混合物水溶液を分散相となるよう乳化し重合した後、得られる油中水滴型エマルジョン状液体を噴霧乾燥し造粒した粉末からなるイオン性の水溶性高分子が上記課題を解決するものであることを見出した。 As a result of intensive studies, the present inventors have surprisingly found that a water-soluble polymer that expresses specific ionicity is used for sludge dewatering treatment, paper sludge dewatering treatment, and a method of making paper by adding it to a papermaking raw material. In particular, it is a simple substance that contains a water-immiscible organic liquid in a continuous phase, a cationic monomer, and a polyfunctional monomer having a plurality of unsaturated double bonds. An ionic water-soluble polymer consisting of a powder obtained by emulsifying and polymerizing an aqueous solution of a monomer mixture into a dispersed phase and polymerizing it, and then spray-drying and granulating the resulting water-in-oil type emulsion liquid solves the above problems. I found out.
すなわち請求項１の発明は、界面活性剤により水に非混和性有機液体を連続相、カチオン性単量体および複数の不飽和二重結合を有する多官能性単量体を必須として含む単量体混合物水溶液を分散相となるよう乳化し重合した後、得られる油中水滴型エマルジョン状液体を、乾燥工程を経ることによって造粒し製造したイオン性水溶性高分子であって、イオン性水溶性高分子の電荷内包率が３５％以上９０％以下であることを特徴とする粉末からなるイオン性水溶性高分子である。 That is, the invention of claim 1 is a monomer comprising, as an essential component, an immiscible organic liquid immiscible in water with a surfactant, a continuous phase, a cationic monomer, and a polyfunctional monomer having a plurality of unsaturated double bonds. A water-in-oil emulsion liquid obtained by emulsifying and polymerizing an aqueous body mixture solution into a disperse phase, and then granulating the resulting liquid by a drying process to produce an ionic water-soluble polymer. It is an ionic water-soluble polymer made of powder, characterized in that the charge encapsulation rate of the conductive polymer is 35% or more and 90% or less.
請求項２の発明は、前記乾燥工程が、噴霧乾燥であることを特徴とする請求項１に記載の粉末からなるイオン性水溶性高分子である。 The invention according to claim 2 is the ionic water-soluble polymer comprising the powder according to claim 1, wherein the drying step is spray drying.
請求項３の発明は、前記乾燥工程が、前記油中水滴型エマルジョン状液体を液状のまま直接乾燥することを特徴とする請求項１に記載の粉末からなるイオン性水溶性高分子である。 The invention according to claim 3 is the ionic water-soluble polymer comprising the powder according to claim 1, wherein the drying step directly dries the water-in-oil emulsion liquid in a liquid state.
請求項４の発明は、前記イオン性水溶性高分子が、下記一般式（１）及び／または（２）で表わされる単量体５〜１００ｍｏｌ％、下記一般式（３）で表わされる単量体０〜５０ｍｏｌ％および水溶性の非イオン性単量体０〜９５ｍｏｌ％および複数の不飽和二重結合を有する多官能性単量体を共重合して得られることを特徴とする、請求項１〜３のいずれかに記載の粉末からなるイオン性水溶性高分子である。
Ｒ１は水素又はメチル基、Ｒ２、Ｒ３は炭素数１〜３のアルキル基、アルコキシル基あるいはベンジル基、Ｒ４は水素、炭素数１〜３のアルキル基、アルコキシル基あるいはベンジル基であり、同種でも異種でも良い。ＡはＯまたはＮＨ、Ｂは炭素数２〜４のアルキレン基またはアルコキシレン基、Ｘ１ −は陰イオンをそれぞれ表す。
Ｒ５、Ｒ６は水素又はメチル基、Ｒ７、Ｒ８は炭素数１〜３のアルキル基、アルコキシ基あるいはベンジル基、Ｘ２ −は陰イオンをそれぞれ表す。
Ｒ９は水素またはＣＨ２ＣＯＯＹ２、Ｒ１０は水素、メチル基またはＣＯＯＹ２、ＱはＳＯ３ −、Ｃ６Ｈ４ＳＯ３ −、ＣＯＮＨＣ（ＣＨ３）２ＣＨ２ＳＯ３ −、Ｃ６Ｈ４ＣＯＯ−あるいはＣＯＯ−であり、Ｙ１は水素または陽イオンをそれぞれ表す。
The invention of claim 4 is characterized in that the ionic water-soluble polymer is a monomer represented by the following general formula (1) and / or (2): 5 to 100 mol%, and represented by the following general formula (3): It is obtained by copolymerizing 0 to 50 mol% of a body, 0 to 95 mol% of a water-soluble nonionic monomer and a polyfunctional monomer having a plurality of unsaturated double bonds. An ionic water-soluble polymer comprising the powder according to any one of 1 to 3.
R 1 is hydrogen or a methyl group, R 2 and R 3 are an alkyl group having 1 to 3 carbon atoms, an alkoxyl group or a benzyl group, and R 4 is hydrogen, an alkyl group having 1 to 3 carbon atoms, an alkoxyl group or a benzyl group. , Same or different. A is O or NH, B is an alkylene group or an alkoxylene group having 2 to 4 carbon atoms, X 1 - represents respectively an anion.
R 5 and R 6 each represent hydrogen or a methyl group, R 7 and R 8 each represent an alkyl group having 1 to 3 carbon atoms, an alkoxy group, or a benzyl group, and X 2 − represents an anion.
R 9 is hydrogen or CH 2 COOY 2 , R 10 is hydrogen, methyl group or COOY 2 , Q is SO 3 − , C 6 H 4 SO 3 − , CONHC (CH 3 ) 2 CH 2 SO 3 − , C 6 H 4 COO - or COO - and is, Y 1 represents respectively hydrogen or a cation.
請求項５の発明は、ＨＬＢ値が１０以上の界面活性剤を含まないことを特徴とする、請求項１〜３のいずれかに記載の粉末からなるイオン性水溶性高分子である。 Invention of Claim 5 is an ionic water-soluble polymer which consists of a powder in any one of Claims 1-3 characterized by not containing surfactant with an HLB value of 10 or more.
請求項の発明は、６請求項１〜５に記載の粉末からなるイオン性水溶性高分子を水に溶解した後、汚泥に添加し凝集させ脱水機により脱水することを特徴とした汚泥の脱水方法である。 The invention of claim 6 is characterized in that the ionic water-soluble polymer comprising the powder according to claims 1 to 5 is dissolved in water, and then added to the sludge and agglomerated and dehydrated by a dehydrator. Is the method.
請求項７の発明は、請求項１〜５に記載の粉末からなるイオン性水溶性高分子を水に溶解した後、製紙スラッジに添加し凝集させ脱水機により脱水することを特徴とした製紙スラッジの脱水方法である。 The invention according to claim 7 is characterized in that the ionic water-soluble polymer comprising the powder according to any one of claims 1 to 5 is dissolved in water, then added to the paper sludge, agglomerated and dewatered by a dehydrator. This is a dehydration method.
請求項８の発明は、請求項１〜５に記載の粉末からなるイオン性水溶性高分子を水に溶解した後、抄紙前の製紙原料中に添加し使用することを特徴とした製紙方法である。 The invention of claim 8 is a papermaking method characterized in that the ionic water-soluble polymer comprising the powder of claims 1-5 is dissolved in water and then added to the papermaking raw material before papermaking. is there.
請求項９の発明は、無機及び／または有機のアニオン性物質と組み合わせて使うことを特徴とした、請求項８記載の製紙方法である。 The invention according to claim 9 is the paper manufacturing method according to claim 8, which is used in combination with inorganic and / or organic anionic substances.
請求項１０の発明は、前記アニオン性物質がコロイダルシリカあるいはベントナイトであることを特徴とする、請求項９記載の製紙方法である。 The invention according to claim 10 is the paper manufacturing method according to claim 9, wherein the anionic substance is colloidal silica or bentonite.
請求項１１の発明は、前記アニオン性物質が、下記一般式（３）で表わされる単量体３〜１００ｍｏｌ％と水溶性の非イオン性単量体の重合物であることを特徴とする、請求項９記載の製紙方法である。
Ｒ９は水素またはＣＨ２ＣＯＯＹ２、Ｒ１０は水素、メチル基またはＣＯＯＹ２、ＱはＳＯ３ −、Ｃ６Ｈ４ＳＯ３ −、ＣＯＮＨＣ（ＣＨ３）２ＣＨ２ＳＯ３ −、Ｃ６Ｈ４ＣＯＯ−あるいはＣＯＯ−であり、Ｙ１は水素または陽イオンをそれぞれ表す。
前記乾燥工程が、前記油中水滴型エマルジョン状液体を液状のまま直接乾燥することを特徴とする請求項１に記載の粉末からなるイオン性水溶性高分子。
The invention of claim 11 is characterized in that the anionic substance is a polymer of 3 to 100 mol% of a monomer represented by the following general formula (3) and a water-soluble nonionic monomer. The paper manufacturing method according to claim 9.
R 9 is hydrogen or CH 2 COOY 2 , R 10 is hydrogen, methyl group or COOY 2 , Q is SO 3 − , C 6 H 4 SO 3 − , CONHC (CH 3 ) 2 CH 2 SO 3 − , C 6 H 4 COO - or COO - and is, Y 1 represents respectively hydrogen or a cation.
The ionic water-soluble polymer comprising a powder according to claim 1, wherein the drying step directly dries the water-in-oil emulsion liquid in a liquid state.
本発明の粉末からなるイオン性水溶性高分子は、不純物の少ない粉末状の水溶性高分子であるため、輸送コストを低減することが可能であり、さらには輸送で生じる二酸化炭素の排出を低減することも可能である。また、油中水型エマルジョン状のイオン性水溶性高分子と比較し疎水性分散媒や界面活性剤の環境への排出量を削減できる。さらには、電荷内包率３５％以上の粉末からなるイオン性水溶性高分子であることから、凝集剤用途、詳しくは汚泥の脱水処理用途、製紙スラッジの脱水処理用途と製紙原料に添加して抄紙する方法に対して特に優れた機能を発揮することが可能となる。 Since the ionic water-soluble polymer comprising the powder of the present invention is a powdery water-soluble polymer with few impurities, it is possible to reduce the transportation cost and further reduce the emission of carbon dioxide generated by transportation. It is also possible to do. In addition, the amount of hydrophobic dispersion medium and surfactant discharged into the environment can be reduced compared to an ionic water-soluble polymer in the form of a water-in-oil emulsion. Furthermore, since it is an ionic water-soluble polymer composed of powder with a charge inclusion rate of 35% or more, it is added to flocculants, specifically sludge dewatering, paper sludge dewatering, and papermaking raw materials. It is possible to exhibit a particularly excellent function with respect to the method.
本発明の粉末からなるイオン性水溶性高分子は、電荷内包率が３５％以上９０％以下であるイオン性の水溶性高分子である。ここで、カチオン性水溶性高分子および両性でかつカチオン性単量体とアニオン性単量体のモル濃度の差が正である水溶性イオン性高分子の電荷内包率とは以下のように計算される。
電荷内包率[％]＝（１−α/β）×１００
αは酢酸にてｐＨ４．０に調整したイオン性水溶性高分子０．０１％水溶液をミューテック社製ＰＣＤ滴定装置（Ｍｅｕｔｅｋ ＰＣＤ ０３、Ｍｅｕｔｅｋ ＰＣＤ−Ｔｗｏ Ｔｉｔｒａｔｏｒ Ｖｅｒｓｉｏｎ２）により、滴下液：１／１０００Ｎ ポリビニルスルホン酸カリウム水溶液、滴下速度：０．０５ｍｌ／１０秒、終点判定：０ｍｖにて滴定し、求めた滴定量である。βは酢酸にてｐＨ４．０に調整したイオン性水溶性高分子０．０１％水溶液に１／４００Ｎ ポリビニルスルホン酸カリウム水溶液を電荷の中和を行うに十分な量加え、十分に攪拌し、同様にＰＣＤ滴定装置により、滴下液：１／１０００Ｎ ジアリルジメチルアンモニウムクロライド水溶液、滴下速度：０．０５ｍｌ／１０秒、終点判定：０ｍｖにて滴定し、ブランク値とこの滴定量との差である。ブランク値とは酢酸にてｐＨ４．０に調整した前記１／４００Ｎ ポリビニルスルホン酸カリウム水溶液と同量のポリビニルスルホン酸カリウム水溶液を、同様にＰＣＤ滴定装置により滴下液：１／１０００Ｎ ジアリルジメチルアンモニウムクロライド水溶液、滴下速度：０．０５ｍｌ／１０秒、終点判定：０ｍｖにて滴定し、求めた滴定量である。
The ionic water-soluble polymer comprising the powder of the present invention is an ionic water-soluble polymer having a charge encapsulation rate of 35% or more and 90% or less. Here, the charge inclusion rate of the cationic water-soluble polymer and the amphoteric and water-soluble ionic polymer in which the difference in molar concentration between the cationic monomer and the anionic monomer is positive is calculated as follows: Is done.
Charge inclusion rate [%] = (1−α / β) × 100
α is a 0.01% aqueous solution of an ionic water-soluble polymer adjusted to pH 4.0 with acetic acid using a Mutec PCD titrator (Meutek PCD 03, Meutek PCD-Two Titortor Version 2). The titration amount was determined by titration with an aqueous potassium polyvinyl sulfonate solution, dropping rate: 0.05 ml / 10 seconds, end point determination: 0 mV. β is added to a 0.01% aqueous solution of an ionic water-soluble polymer adjusted to pH 4.0 with acetic acid in an amount sufficient to neutralize the charge with a 1 / 400N potassium polyvinyl sulfonate aqueous solution, and is stirred sufficiently. It is a difference between a blank value and this titration amount by titrating with a PCD titration apparatus at a dropping solution: 1 / 1000N diallyldimethylammonium chloride aqueous solution, dropping rate: 0.05 ml / 10 seconds, end point determination: 0 mV. The blank value is the same amount as the 1 / 400N potassium polyvinylsulfonate aqueous solution adjusted to pH 4.0 with acetic acid, and the same amount of dripping liquid: 1 / 1000N diallyldimethylammonium chloride aqueous solution using a PCD titrator. The titration rate was determined by titration at a dropping rate of 0.05 ml / 10 seconds and end point determination: 0 mv.
本発明において、両性でかつカチオン性単量体とアニオン性単量体のモル濃度の差が負である水溶性イオン性高分子では、電荷内包率とは以下のように計算される。
電荷内包率[％]＝（１−α/β）×１００
αはアンモニアにてｐＨ１０．０に調整した水溶性イオン性高分子０．０１％水溶液をミューテック社製PCD滴定装置（Ｍｅｕｔｅｋ ＰＣＤ ０３、Ｍｅｕｔｅｋ ＰＣＤ−Ｔｗｏ Ｔｉｔｒａｔｏｒ Ｖｅｒｓｉｏｎ２）により、滴下液：１／１０００Ｎ ジアリルジメチルアンモニウムクロライド水溶液、滴下速度：０．０５ｍｌ／１０ｓｅｃ、終点判定：０ｍｖにて
滴定し、求めた滴定量である。βはアンモニアにてｐＨ１０．０に調整したイオン性水溶性高分子０．０１％水溶液に１／４００Ｎ ジアリルジメチルアンモニウムクロライド水溶液を電荷の中和を行うに十分な量加え、十分に攪拌し、同様にPCD滴定装置により、滴下液：１／１０００Ｎ ポリビニルスルホン酸カリウム水溶液、滴下速度：０．０５ｍｌ／１０ｓｅｃ、終点判定：０ｍｖにて滴定し、この滴定量をブランク値から差し引いた値とする。ブランク値とはアンモニアにてｐＨ１０．０に調整した前記サンプルと同濃度のジアリルジメチルアンモニウムクロライド水溶液を同様にPCD滴定装置により、滴下液：１／１０００Ｎ ポリビニルスルホン酸カリウム水溶液、滴下速度：０．０５ｍｌ／１０ｓｅｃ、終点判定：０ｍｖにて滴定し、求めた滴定量である。
In the present invention, for a water-soluble ionic polymer that is amphoteric and has a negative difference in molar concentration between a cationic monomer and an anionic monomer, the charge inclusion rate is calculated as follows.
Charge inclusion rate [%] = (1−α / β) × 100
α is a 0.01% aqueous solution of a water-soluble ionic polymer adjusted to pH 10.0 with ammonia by using a PCD titration apparatus (Metek PCD 03, Metek PCD-Two Titortor Version 2) manufactured by Mutech. This is the titration amount obtained by titration with diallyldimethylammonium chloride aqueous solution, dropping rate: 0.05 ml / 10 sec, end point determination: 0 mV. β is added to a 0.01% aqueous solution of an ionic water-soluble polymer adjusted to pH 10.0 with ammonia in an amount sufficient to neutralize the charge of a 1 / 400N diallyldimethylammonium chloride aqueous solution, and is stirred sufficiently. Using a PCD titrator, titration is performed with a drop solution: 1 / 1000N potassium polyvinyl sulfonate aqueous solution, drop rate: 0.05 ml / 10 sec, end point determination: 0 mV, and this titration value is subtracted from the blank value. The blank value is a diallyldimethylammonium chloride aqueous solution having the same concentration as that of the above sample adjusted to pH 10.0 with ammonia in the same manner by using a PCD titration apparatus. Dropping solution: 1/1000 N aqueous potassium polyvinylsulfonate solution, dropping rate: 0.05 ml / 10 sec, end point determination: titration obtained by titration at 0 mv.
本発明におけるイオン性水溶性高分子の電荷内包率は、イオン性の発現効率に関するパラメーターであり、イオン性物質のポリビニルスルホン酸カリウムによる正滴定と逆滴定との間に大きな差が生じることが汚泥、製紙スラッジおよび製紙原料に添加した場合、効果との間に明確な相関が生じるものである。 The charge inclusion rate of the ionic water-soluble polymer in the present invention is a parameter related to the ionic expression efficiency, and sludge may cause a large difference between the forward titration and the back titration with the ionic substance potassium polyvinyl sulfonate. When added to papermaking sludge and papermaking raw material, there is a clear correlation between the effects.
電荷内包率３５％より小さいイオン性水溶性高分子を汚泥あるいは製紙スラッジに添加した場合、比較的低い添加量で凝集し含水率は低下するが、添加量の増大とともに汚泥あるいは製紙スラッジが再分散し、粘性を帯び、汚泥含水率が増大する。電荷内包率３５％以上のものを添加した場合、幅広い添加量範囲で添加の増大とともに巨大で強固なフロックを形成し、著しく汚泥あるいは製紙スラッジの含水率を低下させる。また、９０％より大きいものを添加した場合は、それ以外のものの数倍以上の薬品を添加せねば汚泥あるいは製紙スラッジの凝集挙動に全く寄与しない。 When an ionic water-soluble polymer with a charge inclusion rate of less than 35% is added to sludge or papermaking sludge, it aggregates with a relatively low addition amount and the water content decreases, but the sludge or papermaking sludge is redispersed as the addition amount increases. However, it becomes viscous and the water content of sludge increases. When a substance having a charge inclusion rate of 35% or more is added, a large and strong floc is formed with an increase in addition over a wide range of addition amount, and the water content of sludge or papermaking sludge is remarkably lowered. In addition, when a substance larger than 90% is added, it does not contribute at all to the coagulation behavior of sludge or papermaking sludge unless chemicals more than several times the others are added.
電荷内包率３５％より小さいイオン性水溶性高分子を製紙原料に添加し抄紙した場合、比較的低い添加量で緩やかに凝集し製紙原料の歩留率、濾水性は向上する。電荷内包率３５％以上のものを添加し抄紙した場合、より高シェアの混合条件で強固で緻密なフロックを形成し、特に製紙原料中の填料歩留率を向上させる。９０％より大きいものを添加した場合は、数倍以上の薬品を添加しても凝集挙動はそれ以外のものに大きく劣る。すなわち、好適な電荷内包率の範囲は３５％以上９０％以下の範囲である。 When an ionic water-soluble polymer having a charge inclusion rate of less than 35% is added to a papermaking raw material, the papermaking raw material is gradually agglomerated with a relatively low addition amount to improve the yield and drainage of the papermaking raw material. When paper with a charge inclusion rate of 35% or more is added, a strong and dense floc is formed under a higher shear mixing condition, and in particular, the filler yield in the papermaking raw material is improved. In the case of adding more than 90%, the aggregation behavior is greatly inferior to the others even if several times or more chemicals are added. That is, a preferable range of the charge inclusion rate is in the range of 35% to 90%.
本発明の粉末からなるイオン性水溶性高分子は、界面活性剤により水に非混和性有機液体を連続相、カチオン性単量体および複数の不飽和二重結合を有する多官能性単量体を必須として含む単量体混合物水溶液を分散相となるよう乳化し重合した後、得られる油中水滴型エマルジョン状液体を噴霧乾燥し造粒し得ることが出来る。一般式（１）で表されるカチオン性単量体の例としては、例えばジメチルアミノエチル（メタ）アクリレート、ジエチルアミノエチル（メタ）アクリレート、ジメチルアミノプロピル（メタ）アクリルアミド、ジエチルアミノプロピル（メタ）アクリルアミドやこれらのハロゲン化水素、硫酸、硝酸、有機酸等による中和塩、ハロゲン化アルキル、ベンジルハライド、ジメチル硫酸、ジエチル硫酸等による四級化物、一般式（２）で表されるカチオン性単量体の例としては、ジメチルジ（メタ）アリルアンモニウム塩化物、ジ（メタ）アリルメチルベンジルアンモニウム塩化物等が挙げられ、単独で使用することも複数を同時に使用することも可能である。カチオン性単量体の量としては、重合後の水溶性高分子がカチオン性を有する範囲であれば特に制限は無いが、前記多官能性単量体を除く全単量体に対してカチオン性単量体の量が５〜９５ｍｏｌ％の範囲であることが好ましい。 The ionic water-soluble polymer comprising the powder of the present invention is a polyfunctional monomer having a water-immiscible organic liquid in a continuous phase, a cationic monomer, and a plurality of unsaturated double bonds. After emulsifying and polymerizing an aqueous monomer mixture solution containing essentially as a dispersed phase, the resulting water-in-oil emulsion liquid can be spray-dried and granulated. Examples of the cationic monomer represented by the general formula (1) include dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, dimethylaminopropyl (meth) acrylamide, diethylaminopropyl (meth) acrylamide, and the like. These neutralized salts with hydrogen halide, sulfuric acid, nitric acid, organic acid, etc., quaternized products with alkyl halide, benzyl halide, dimethyl sulfuric acid, diethyl sulfuric acid, etc., cationic monomers represented by the general formula (2) Examples of these include dimethyldi (meth) allyl ammonium chloride, di (meth) allylmethylbenzylammonium chloride, and the like, which can be used alone or in combination. The amount of the cationic monomer is not particularly limited as long as the water-soluble polymer after polymerization has a cationic property, but is cationic with respect to all monomers except the polyfunctional monomer. The amount of the monomer is preferably in the range of 5 to 95 mol%.
前記多官能性単量体は複数の不飽和二重結合を複数有していれば特に制限はないが、Ｎ，Ｎ’−メチレンビス（メタ）アクリルアミド、トリアリルアミン、エチレングリコールジ（メタ）アクリレート、ポリエチレングリコールジ（メタ）アクリレート、１，３−ブチレングリコールジ（メタ）アクリレート、Ｎ−ビニル（メタ）アクリルアミド等が挙げられる。多官能性単量体の量としては、多官能性単量体を除く全単量体重量に対して０．１〜１００ｐｐｍの範囲であることが好ましく、さらに好ましくは、０．２〜５０ｐｐｍの範囲である。 The polyfunctional monomer is not particularly limited as long as it has a plurality of unsaturated double bonds, but N, N′-methylenebis (meth) acrylamide, triallylamine, ethylene glycol di (meth) acrylate, Examples include polyethylene glycol di (meth) acrylate, 1,3-butylene glycol di (meth) acrylate, and N-vinyl (meth) acrylamide. The amount of the polyfunctional monomer is preferably in the range of 0.1 to 100 ppm, more preferably 0.2 to 50 ppm with respect to the total monomer weight excluding the polyfunctional monomer. It is a range.
本発明における単量体混合物水溶液は、上記単量体のほかに共重合可能なアニオン性単量体および／または水溶性の非イオン性単量体を含むことが出来る。一般式（３）で表されるアニオン性単量体の例としては、ビニルスルホン酸、ビニルベンゼンスルホン酸、２−アクリルアミド２−メチルプロパンスルホン酸、メタクリル酸、アクリル酸、イタコン酸、マレイン酸あるいはｐ−カルボキシスチレンなどが挙げられる。アニオン性単量体の量としては、前記多官能性単量体を除く全単量体に対して０〜５０ｍｏｌ％の範囲であることが好ましい。 The monomer mixture aqueous solution in the present invention may contain a copolymerizable anionic monomer and / or a water-soluble nonionic monomer in addition to the above monomer. Examples of the anionic monomer represented by the general formula (3) include vinyl sulfonic acid, vinyl benzene sulfonic acid, 2-acrylamido 2-methylpropane sulfonic acid, methacrylic acid, acrylic acid, itaconic acid, maleic acid or p-carboxystyrene etc. are mentioned. The amount of the anionic monomer is preferably in the range of 0 to 50 mol% with respect to all monomers excluding the polyfunctional monomer.
水溶性の非イオン性単量体の例としては、（メタ）アクリルアミド、Ｎ，Ｎ−ジメチルアクリルアミド、酢酸ビニル、アクリロニトリル、アクリル酸メチル、（メタ）アクリル酸２−ヒドロキシエチル、ジアセトンアクリルアミド、Ｎ−ビニルピロリドン、Ｎ−ビニルホルムアミド、Ｎ−ビニルアセトアミド、アクリロイルモルホリン、アクリロイルピペラジンなどが挙げられ、その量としては前記多官能性単量体を除く全単量体に対して０〜９５ｍｏｌ％の範囲であることが好ましい。 Examples of water-soluble nonionic monomers include (meth) acrylamide, N, N-dimethylacrylamide, vinyl acetate, acrylonitrile, methyl acrylate, 2-hydroxyethyl (meth) acrylate, diacetone acrylamide, N -Vinylpyrrolidone, N-vinylformamide, N-vinylacetamide, acryloylmorpholine, acryloylpiperazine, etc. are mentioned, and the amount thereof is in the range of 0 to 95 mol% with respect to all monomers except the polyfunctional monomer. It is preferable that
単量体水溶液混合物には前記単量体の他に、連鎖移動性を有する化合物を含むことが出来る。連鎖移動性を有する化合物の例としては、２−プパノール、２−メルカプトエタノール、メタリルスルホン酸ナトリウム、ギ酸ナトリウムなどが上げられ、目的とする重合物の組成、重合速度および分子量に応じて適宜添加する。 The monomer aqueous solution mixture may contain a compound having chain transferability in addition to the monomer. Examples of compounds having chain transferability include 2-ppanol, 2-mercaptoethanol, sodium methallyl sulfonate, sodium formate and the like, which are appropriately added depending on the composition, polymerization rate and molecular weight of the target polymer. To do.
連続相を形成する水に非混和性有機液体としては、水と混合した際相分離を生じ、界面活性剤により乳化可能な有機液体であれば特に制限はないが、パラフィン類あるいは灯油、軽油、中油などの鉱油、あるいはこれらと実質的に同じ範囲の沸点や粘度などの特性を有する炭化水素系合成油、あるいはこれらの混合物があげられる。含有量としては、油中水型エマルジョン全量に対して２０重量％〜５０重量％の範囲であることが好ましい。 The water-immiscible organic liquid that forms a continuous phase is not particularly limited as long as it is an organic liquid that causes phase separation when mixed with water and can be emulsified with a surfactant, but paraffins, kerosene, light oil, Examples thereof include mineral oils such as medium oils, hydrocarbon synthetic oils having characteristics such as boiling point and viscosity in substantially the same range as these, and mixtures thereof. The content is preferably in the range of 20% to 50% by weight with respect to the total amount of the water-in-oil emulsion.
乳化に必要な界面活性剤の例としては、油中水型エマルジョンを形成するに有効な量とＨＬＢを有する少なくとも一種類の界面活性剤の例としては、ＨＬＢ３〜１０のノニオン性界面活性剤であり、その具体例としては、ソルビタンモノオレ−ト、ソルビタンジオレ−ト、ソルビタントリオレート、ソルビタンモノステアレ−ト、ソルビタンジステアレ−ト、ソルビタンモノラウレ−ト、ソルビタンジラウレ−ト、ソルビタンモノパルミテ−ト、ソルビタンジパルミテ−ト、ポリオキシエチレンソルビタンモノオレート、ポリオキシエチレンソルビタントリオレート、ポリオキシエチレンソルビタンモノステアレート、ポリオキシエチレンステアリルエ−テル、ポリオキシエチレンラウリルエ−テル、ポリオキシエチレンセチルエ−テル、ポリオキシエチレントリデシルエ−テル、ポリオキシエチレンオレイルエ−テル、高分子非イオン性界面活性剤類などがあげられる。これら界面活性剤の添加量としては、油中水型エマルジョン全量に対して０．５〜１０重量％であり、好ましくは１〜５重量％の範囲である。 Examples of surfactants required for emulsification include non-ionic surfactants of HLB 3-10 as examples of at least one surfactant having an amount effective to form a water-in-oil emulsion and HLB. Specific examples thereof include sorbitan monooleate, sorbitan dioleate, sorbitan trioleate, sorbitan monostearate, sorbitan distearate, sorbitan monolaurate, sorbitan dilaurate, Sorbitan monopalmitate, sorbitan dipalmitate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan monostearate, polyoxyethylene stearyl ether, polyoxyethylene lauryl ether Tellurium, polyoxyethylene cetyl ether, poly Polyoxyethylene tridecyl et - ether, polyoxyethylene oleyl et - ether, and high molecular nonionic surfactants and the like. The addition amount of these surfactants is 0.5 to 10% by weight, preferably 1 to 5% by weight, based on the total amount of the water-in-oil emulsion.
重合条件は通常、使用する単量体や共重合モル％によって適宜決めていき、温度としては０〜１００℃の範囲で行う。特に油中水型エマルジョン重合法を適用する場合は、２０〜８０℃、好ましくは２０〜６０℃の範囲で行う。重合開始はラジカル重合開始剤を使用する。これら開始剤は油溶性あるいは水溶性のどちらでも良く、アゾ系、過酸化物系、レドックス系いずれでも重合することが可能である。油溶性アゾ系開始剤の例としては、２、２’−アゾビスイソブチロニトリル、１、１’−アゾビス（シクロヘキサンカルボニトリル）、２、２’−アゾビス（２−メチルブチロニトリル）、２、２’−アゾビス（２−メチルプロピオネ−ト）、４、４−アゾビス（４−メトキシ−２、４ジメチル）バレロニトリルなどがあげられる。 The polymerization conditions are usually appropriately determined according to the monomer used and the copolymerization mol%, and the temperature is in the range of 0 to 100 ° C. In particular, when the water-in-oil emulsion polymerization method is applied, it is carried out in the range of 20 to 80 ° C, preferably 20 to 60 ° C. For the initiation of polymerization, a radical polymerization initiator is used. These initiators may be either oil-soluble or water-soluble, and can be polymerized by any of azo, peroxide, and redox systems. Examples of oil-soluble azo initiators include 2,2′-azobisisobutyronitrile, 1,1′-azobis (cyclohexanecarbonitrile), 2,2′-azobis (2-methylbutyronitrile), 2,2'-azobis (2-methylpropionate), 4,4-azobis (4-methoxy-2,4dimethyl) valeronitrile and the like.
水溶性アゾ系開始剤の例としては、２、２’−アゾビス（アミジノプロパン）二塩化水素化物、２、２’−アゾビス〔２−（５−メチル−２−イミダゾリン−２−イル）プロパン〕二塩化水素化物、４、４’−アゾビス（４−シアノ吉草酸）などがあげられる。またレドックス系の例としては、ペルオクソ二硫酸アンモニウムと亜硫酸ナトリウム、亜硫酸水素ナトリウム、トリメチルアミン、テトラメチルエチレンジアミンなどとの組み合わせがあげられる。さらに過酸化物の例としては、ペルオクソ二硫酸アンモニウムあるいはカリウム、過酸化水素,ベンゾイルペルオキサイド、ラウロイルペルオキサイド、オクタノイルペルオキサイド、サクシニックペルオキサイド、t-ブチルペルオキシ２−エチルヘキサノエ−トなどをあげることができる。 Examples of water-soluble azo initiators include 2,2′-azobis (amidinopropane) dihydrochloride, 2,2′-azobis [2- (5-methyl-2-imidazolin-2-yl) propane] And dihydrochloride, 4,4′-azobis (4-cyanovaleric acid), and the like. Examples of redox systems include a combination of ammonium peroxodisulfate and sodium sulfite, sodium hydrogen sulfite, trimethylamine, tetramethylethylenediamine, and the like. Examples of peroxides include ammonium or potassium peroxodisulfate, hydrogen peroxide, benzoyl peroxide, lauroyl peroxide, octanoyl peroxide, succinic peroxide, t-butylperoxy 2-ethylhexanoate, etc. I can give you.
単量体の重合濃度は、乳化液重量に対して、２０〜５０重量％の範囲であり、好ましくは２５〜４０重量％の範囲であり、単量体の組成、重合法、開始剤の選択によって適宜重合の濃度と温度を設定する。これらの単量体を重合して得られるイオン性水溶性高分子の分子量は、好ましくは３００万〜２０００万の範囲である。 The monomer polymerization concentration is in the range of 20 to 50% by weight, preferably in the range of 25 to 40% by weight, based on the weight of the emulsion, and the monomer composition, polymerization method, and selection of initiator The polymerization concentration and temperature are set as appropriate. The molecular weight of the ionic water-soluble polymer obtained by polymerizing these monomers is preferably in the range of 3 million to 20 million.
一般的な、イオン性水溶性高分子の油中水滴型エマルジョンを、凝集剤用途として水に溶解して使用する場合、親水性の強い両親媒性共重合物や親水性界面活性剤を添加して油の膜で被われたエマルジョン粒子が水になじみ易くし、中のイオン性水溶性高分子が溶解しやすくする処理を行い、水で希釈しそれぞれの用途に用いる。本発明における、油中水滴型エマルジョンにおいても、両親媒性共重合物および親水性界面活性剤を含有することも可能であるが、噴霧乾燥して得られる粉末を製造する場合、不純物が含まれることおよび、噴霧乾燥して得られる粉末を水に溶解して使用する場合、特にＨＬＢ値が１０以上の親水性界面活性剤を含有する場合、理由は明らかではないがおそらくは界面活性剤とカチオン性高分子が複合体を形成するために溶解速度が遅くなるので、含まない物のほうが好ましい。また油中水滴型エマルジョン状液体を液状のまま直接乾燥する場合、乾燥工程中に粒子同士が結着しやすくなり、粗大化し、後の粉砕工程において余分のエネルギーを費やし好ましくない。乾燥方法としては、通常の箱型乾燥機に一定時間保持し乾燥することも可能である。あるいはベルトコンベア上に油中水滴型エマルジョンを載せ、乾燥機の中を一定の滞留時間通し、乾燥することも可能である。乾燥温度は、低温で長時間乾燥するよりも、比較的高温で
短時間乾燥するほうが、不溶化などが起きにくい。すなわち１２０〜７０℃で
数分から数十分程度である。
When using a general water-in-oil emulsion of an ionic water-soluble polymer dissolved in water for use as a flocculant, a highly hydrophilic amphiphilic copolymer or hydrophilic surfactant is added. Then, the emulsion particles covered with the oil film are made easy to adjust to water and the ionic water-soluble polymer therein is easily dissolved, diluted with water and used for each application. The water-in-oil emulsion in the present invention can also contain an amphiphilic copolymer and a hydrophilic surfactant, but impurities are included when producing a powder obtained by spray drying. When the powder obtained by spray drying is dissolved in water and used, particularly when a hydrophilic surfactant having an HLB value of 10 or more is contained, the reason is not clear, but probably the surfactant and the cationic Since the polymer forms a complex, the dissolution rate is slow, and therefore the one not containing is preferable. Further, when the water-in-oil emulsion liquid is directly dried in a liquid state, the particles are likely to be bound to each other during the drying process and become coarse, and excessive energy is consumed in the subsequent pulverization process. As a drying method, it is also possible to hold in a normal box dryer for a certain period of time and dry. Alternatively, it is possible to place a water-in-oil emulsion on a belt conveyor and dry it through a drier for a fixed residence time. The drying temperature is less likely to cause insolubilization when drying at a relatively high temperature for a short time than drying at a low temperature for a long time. That is, it is about several minutes to several tens of minutes at 120 to 70 ° C.
本発明の汚泥の脱水方法は、請求項１〜３に記載の粉末からなるイオン性水溶性高分子を水に溶解した後、汚泥に添加し凝集させ脱水機により脱水する方法である。汚泥の種類としては特に制限はなく、製紙排水、化学工業排水、食品工業排水などの生物処理したときに発生する余剰汚泥、あるいは都市下水の生汚泥、混合生汚泥、余剰汚泥、消化汚泥などの有機汚泥に使用することができる。 The sludge dewatering method of the present invention is a method in which the ionic water-soluble polymer comprising the powder according to any one of claims 1 to 3 is dissolved in water, and then added to the sludge to be agglomerated and dehydrated by a dehydrator. There are no particular restrictions on the type of sludge, such as surplus sludge generated during biological treatment such as papermaking wastewater, chemical industrial wastewater, and food industry wastewater, or raw sludge, mixed raw sludge, surplus sludge, digested sludge, etc. Can be used for organic sludge.
本発明の粉末からなるイオン性水溶性高分子は、水に溶解した後、汚泥脱水および製紙スラッジに添加し凝集させ脱水機により脱水する方法である。汚泥脱水および製紙スラッジの脱水に用いる脱水機の種類としては特に制限はなく、ベルトプレス、スクリュープレス、ロータリープレス、フィルタープレスなどの圧搾脱水装置、または遠心分離機、真空濾過機などの圧力脱水装置が例として挙げられる。 The ionic water-soluble polymer comprising the powder of the present invention is a method in which it is dissolved in water and then added to sludge dewatering and paper sludge to be agglomerated and dehydrated by a dehydrator. There are no particular restrictions on the type of dehydrator used for sludge dewatering and paper sludge dewatering. Pressure dehydration devices such as belt presses, screw presses, rotary presses, filter presses, etc., or centrifugal separators, vacuum filters, etc. Is given as an example.
本発明の汚泥の脱水方法および製紙スラッジの脱水方法において、特に好適に使用できる脱水機としては、請求項１〜３に記載の粉末からなるイオン性水溶性高分子の電荷内包率と脱水効果の挙動を考慮すると、電荷内包率が３５％以上９０％以下の範囲では、添加量の増大とともに巨大で強固なフロックを形成する特徴があり、それに伴って脱水の初期濾水量が増大することから、強固なフロックや初期脱水性能が要求されるスクリュープレス脱水機およびロータリープレス脱水機が挙げられる。 In the sludge dewatering method and paper sludge dewatering method of the present invention, as a dehydrator that can be used particularly preferably, the charge inclusion rate and dewatering effect of the ionic water-soluble polymer comprising the powder according to any one of claims 1 to 3 can be used. Considering the behavior, when the charge inclusion rate is in the range of 35% or more and 90% or less, there is a feature of forming a huge and strong floc as the amount of addition increases, and accordingly, the initial drainage amount of dehydration increases. Examples thereof include screw press dehydrators and rotary press dehydrators that require strong flock and initial dewatering performance.
本発明の汚泥の脱水方法および製紙スラッジの脱水方法は、請求項１〜３に記載の粉末からなるイオン性水溶性高分子の他に有機もしくは無機の凝結剤を併用することが可能である。有機凝結剤の例としてはとしてはカチオン性を有する高分子が挙げられ（メタ）アクリロイルオキシエチルトリメチルアンモニウムクロリドといった、（メタ）アクリロイルオキシアルキルトリアルキルアンモニウムハライド類やジアリルジメチルアンモニウムクロリドといったジアリルアミン化合物などが挙げられ、無機凝結剤の例としては、ポリ塩化アルミニウムや塩化第二鉄、硫酸第二鉄といった金属塩が挙げられる。 The sludge dewatering method and paper sludge dewatering method of the present invention can use an organic or inorganic coagulant in addition to the ionic water-soluble polymer comprising the powder according to claims 1 to 3. Examples of organic coagulants include cationic polymers, such as (meth) acryloyloxyethyltrimethylammonium chloride, diallylamine compounds such as (meth) acryloyloxyalkyltrialkylammonium halides and diallyldimethylammonium chloride. Examples of inorganic coagulants include metal salts such as polyaluminum chloride, ferric chloride, and ferric sulfate.
本発明の製紙方法は、請求項１〜３に記載の粉末からなるイオン性水溶性高分子を水に溶解した後、抄紙前の製紙原料中に添加し使用する方法である。製紙原料の種類に特に制限はなく、クラフトパルプ、ＢＫＰ、ＴＭＰ、ＤＩＰなどのパルプを用いることができ、電荷内包率が３５％以上９０％以下のイオン性水溶性高分子に対して、ＤＩＰなどの短繊維分を多いパルプ、ＴＭＰなどのアニオン性物質を多く含有するパルプ、あるいはパルプの他に填料を多く含む原料を用いる場合、特に好適である。 The papermaking method of the present invention is a method in which the ionic water-soluble polymer comprising the powder according to any one of claims 1 to 3 is dissolved in water and then added to a papermaking raw material before papermaking. There are no particular restrictions on the type of papermaking raw material, and pulp such as kraft pulp, BKP, TMP, and DIP can be used. For ionic water-soluble polymers having a charge inclusion rate of 35% to 90%, DIP and the like It is particularly suitable when using a pulp containing a large amount of short fibers, a pulp containing a large amount of an anionic substance such as TMP, or a raw material containing a large amount of filler in addition to the pulp.
填料の種類は特に制限は無く、炭酸カルシウム、タルク、カオリン、酸化チタンなどが挙げられる。また、抄紙時のｐＨにも制限はなく酸性、中性条件での抄紙も可能である。本発明のイオン性水溶性高分子を用いる場合、特に炭酸カルシウムを多く使用する中性抄紙条件での填料歩留率の向上に用いることが好適である。 The type of filler is not particularly limited, and examples include calcium carbonate, talc, kaolin, and titanium oxide. Moreover, there is no restriction | limiting also in pH at the time of papermaking, and papermaking on acidic and neutral conditions is also possible. When the ionic water-soluble polymer of the present invention is used, it is preferably used for improving the filler yield rate under neutral papermaking conditions in which a large amount of calcium carbonate is used.
本発明の粉末からなるイオン性水溶性高分子の水溶液をパルプスラリーに添加して抄造し、紙を製造することができるが、添加場所は特に制限されないが、種箱、マシンチェスト、スクリーンの入り口あるいは出口等が想定される。イオン性水溶性高分子をパルプ重量に対し１０〜５００ｐｐｍ添加して使用することが好ましい。 Paper can be produced by adding an aqueous solution of the ionic water-soluble polymer comprising the powder of the present invention to a pulp slurry to produce paper, but the addition location is not particularly limited, but the seed box, machine chest, screen entrance Or an exit etc. are assumed. It is preferable to use 10 to 500 ppm of ionic water-soluble polymer added to the pulp weight.
本発明の粉末からなるイオン性水溶性高分子の水溶液を用いた製紙方法は、無機及び／または有機のアニオン性物質と組み合わせて使うことが可能である。無機のアニオン性物質の例としては、コロイダルシリカあるいはベントナイトが例示され、有機のアニオン性物質としては、一般式（３）で表せるアニオン性単量体３〜１００ｍｏｌ％と水溶性の非イオン性単量体の共重合物が例示できる。 The papermaking method using the aqueous solution of the ionic water-soluble polymer comprising the powder of the present invention can be used in combination with inorganic and / or organic anionic substances. Examples of inorganic anionic substances include colloidal silica or bentonite, and examples of organic anionic substances include 3 to 100 mol% of an anionic monomer represented by the general formula (3) and a water-soluble nonionic substance. A copolymer of a monomer can be exemplified.
一般式（３）で表されるアニオン性単量体３〜１００ｍｏｌ％と水溶性の非イオン性単量体の共重合物の形態に特に制限は無く、ペースト状水溶液、油中水滴型エマルジョン、水性分散液等が挙げられ、いずれも水に溶解した水溶液として添加できる。添加場所については特に制限はなく、イオン性水溶性高分子の添加前あるいは添加後あるいは同時に添加することが可能であるし、両者の水溶液もしくは分散液を混合して用いることも可能である。 There is no particular limitation on the form of a copolymer of 3 to 100 mol% of an anionic monomer represented by the general formula (3) and a water-soluble nonionic monomer, a paste-like aqueous solution, a water-in-oil emulsion, An aqueous dispersion liquid etc. are mentioned, All can be added as aqueous solution melt | dissolved in water. There are no particular restrictions on the location of the addition, and it can be added before, after or simultaneously with the addition of the ionic water-soluble polymer, or both aqueous solutions or dispersions can be mixed and used.
（実施例）以下、実施例および比較例によって本発明をさらに詳しく説明するが、本発明はその要旨を超えない限り、以下の実施例に制約されるものではない。 (Examples) Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. However, the present invention is not limited to the following examples unless it exceeds the gist.
（イオン性水溶性高分子粉末の製造例１）イオン交換水４５．８５ｇ、５０重量％アクリルアミド水溶液２２０．０６ｇ、８０重量％アクリロイルオキシエチルトリメチルアンモニウムクロリド水溶液９３．７１ｇ、０．２重量％メチレンビスアクリルアミド水溶液０．１９ｇおよび２−プロパノール０．１９ｇを仕込んだ水溶液混合物に、ソルビタンモノオレート５．００ｇおよび沸点１９０℃ないし２３０℃のイソパラフィン１３５．００ｇからなる混合物を加え、モノジナイザーにて１０００ｒｐｍの回転数のもとで１５分間強攪拌しモノマー乳化液を得た。このものを、十字攪拌ペラを取り付けた攪拌機、還流冷却管、温度計、窒素導入管および冷却装置を備えた四つ口セパラブルフラスコに仕込み、十字攪拌ペラで４００ｐｒｍの攪拌条件下内温３０℃で３０分間窒素置換を行った。窒素置換が完了した後、２，２’−アゾビス（４−メトキシ−２，４−ジメチルバレロニトリル）を０．１４８ｇ加え窒素雰囲気下３０℃で２０時間保持し重合を行い、イオン性水溶性高分子の油中水型エマルジョンを得た。この油中水型エマルジョンを造粒乾燥装置内に噴霧し、造粒した粉末の水分が５重量％以下になるまで乾燥造粒し、イオン性水溶性高分子の粉末を得た。このものを製造例１とし物性を表１に示す。 (Production Example 1 of Ionic Water-soluble Polymer Powder) Ion-exchanged water 45.85 g, 50 wt% acrylamide aqueous solution 220.06 g, 80 wt% acryloyloxyethyltrimethylammonium chloride aqueous solution 93.71 g, 0.2 wt% methylenebis A mixture of 5.00 g of sorbitan monooleate and 135.00 g of isoparaffin having a boiling point of 190 ° C. to 230 ° C. is added to an aqueous solution mixture prepared by adding 0.19 g of acrylamide aqueous solution and 0.19 g of 2-propanol, and the number of revolutions at 1000 rpm with a monogenizer The mixture was vigorously stirred for 15 minutes to obtain a monomer emulsion. This was charged into a four-necked separable flask equipped with a stirrer equipped with a cross stirrer, a reflux condenser, a thermometer, a nitrogen introduction pipe and a cooling device, and the internal temperature was 30 ° C. under a stirring condition of 400 prm with the cross stirrer. For 30 minutes. After completion of the nitrogen substitution, 0.148 g of 2,2′-azobis (4-methoxy-2,4-dimethylvaleronitrile) was added and polymerization was carried out by maintaining at 30 ° C. for 20 hours in a nitrogen atmosphere. A molecular water-in-oil emulsion was obtained. This water-in-oil emulsion was sprayed into a granulating / drying apparatus, and dried and granulated until the moisture of the granulated powder was 5% by weight or less to obtain an ionic water-soluble polymer powder. This was designated as Production Example 1 and the physical properties are shown in Table 1.
（イオン性水溶性高分子粉末の製造例２）イオン交換水９９．９０ｇ、５０重量％アクリルアミド水溶液７２．７２ｇ、８０重量％アクリロイルオキシエチルトリメチルアンモニウムクロリド水溶液１８５．８０ｇ、０．２重量％メチレンビスアクリルアミド水溶液１．３９ｇおよび２−プロパノール０．１９ｇを仕込んだ水溶液混合物に、ソルビタンモノオレート５．００ｇおよび沸点１９０℃ないし２３０℃のイソパラフィン１３５．００ｇからなる混合物を加え、モノジナイザーにて１０００ｒｐｍの回転数のもとで１５分間強攪拌しモノマー乳化液を得た。このものを、十字攪拌ペラを取り付けた攪拌機、還流冷却管、温度計、窒素導入管および冷却装置を備えた四つ口セパラブルフラスコに仕込み、十字攪拌ペラで４００ｐｒｍの攪拌条件下内温５０℃で３０分間窒素置換を行った。窒素置換が完了した後、ジメチル−２，２’−アゾビス（イソブチレート）を０．１４８ｇ加え窒素雰囲気下５０℃で２０時間保持し重合を行い、イオン性水溶性高分子の油中水型エマルジョンを得た。この油中水型エマルジョンを造粒乾燥装置内に噴霧し、造粒した粉末の水分が５重量％以下になるまで乾燥造粒し、イオン性水溶性高分子の粉末を得た。このものを製造例２とし物性を表１に、このものを０．２重量％濃度となるよう水に溶解した場合の粘度の変化を図１に示す。 (Production example 2 of ionic water-soluble polymer powder) 99.90 g of ion-exchanged water, 72.72 g of 50% by weight acrylamide aqueous solution, 185.80 g of 80% by weight acryloyloxyethyltrimethylammonium chloride aqueous solution, 0.2% by weight methylenebis A mixture of 5.00 g of sorbitan monooleate and 135.00 g of isoparaffin having a boiling point of 190 ° C. to 230 ° C. was added to an aqueous mixture prepared by adding 1.39 g of an acrylamide aqueous solution and 0.19 g of 2-propanol, and the number of revolutions at 1000 rpm with a monogenizer. The mixture was vigorously stirred for 15 minutes to obtain a monomer emulsion. This was charged into a four-necked separable flask equipped with a stirrer equipped with a cross stirrer, a reflux condenser, a thermometer, a nitrogen introduction pipe and a cooling device, and the internal temperature was 50 ° C. under a stirring condition of 400 prm with the cross stirrer. For 30 minutes. After completion of the nitrogen substitution, 0.148 g of dimethyl-2,2′-azobis (isobutyrate) was added and the polymerization was carried out under a nitrogen atmosphere at 50 ° C. for 20 hours to obtain a water-in-oil emulsion of an ionic water-soluble polymer. Obtained. This water-in-oil emulsion was sprayed into a granulating / drying apparatus, and dried and granulated until the moisture of the granulated powder was 5% by weight or less to obtain an ionic water-soluble polymer powder. This is referred to as Production Example 2, the physical properties are shown in Table 1, and the viscosity change when this is dissolved in water to a concentration of 0.2% by weight is shown in FIG.
（イオン性水溶性高分子粉末の製造例３）イオン交換水を１１４．１２ｇ、５０重量％アクリルアミド水溶液を３１．０９ｇ、８０重量％アクリロイルオキシエチルトリメチルアンモニウムクロリド水溶液を２１１．８２ｇ、０．２重量％メチレンビスアクリルアミド水溶液を２．７８ｇに変えたこと以外は、イオン性水溶性高分子粉末の製造例２と同様な方法でイオン性水溶性高分子の粉末を得た。このものを製造例３とし物性を表１に示す。 (Production Example 3 of Ionic Water-soluble Polymer Powder) 114.12 g of ion-exchanged water, 31.09 g of 50 wt% acrylamide aqueous solution, 211.82 g of 0.2 wt% aqueous solution of 80 wt% acryloyloxyethyltrimethylammonium chloride, 0.2 wt% An ionic water-soluble polymer powder was obtained in the same manner as in Production Example 2 of the ionic water-soluble polymer powder except that the% methylenebisacrylamide aqueous solution was changed to 2.78 g. This was designated as Production Example 3 and the physical properties are shown in Table 1.
（イオン性水溶性高分子粉末の製造例４）イオン性水溶性高分子粉末の製造例３と同様な方法でイオン性水溶性高分子の油中水型エマルジョンを得た。その後、前記油中水型エマルジョンをステンレス製の浅い容器に深さ３ｍｍに注ぎ込み、乾燥機中において１００℃で１時間乾燥した。生成した乾燥物を粉砕機により粉砕し、イオン性水溶性高分子の粉末を得た。このものを製造例４とし物性を表１に示す。 (Production Example 4 of Ionic Water-soluble Polymer Powder) A water-in-oil emulsion of an ionic water-soluble polymer was obtained in the same manner as in Production Example 3 of the ionic water-soluble polymer powder. Thereafter, the water-in-oil emulsion was poured into a shallow stainless steel container to a depth of 3 mm and dried in a dryer at 100 ° C. for 1 hour. The resulting dried product was pulverized by a pulverizer to obtain an ionic water-soluble polymer powder. This was designated as Production Example 4 and the physical properties are shown in Table 1.
（イオン性水溶性高分子粉末の比較製造例１）イオン交換水を４５．９９ｇ、０．２重量％メチレンビスアクリルアミド水溶液を０．０５ｇに変えたこと以外は、イオン性水溶性高分子粉末の製造例１と同様な方法でイオン性水溶性高分子の粉末を得た。このものを比較製造例１とし物性を表１に示す。 (Comparative Production Example 1 of Ionic Water-soluble Polymer Powder) Except that the ion-exchanged water was changed to 45.99 g and the 0.2 wt% methylenebisacrylamide aqueous solution was changed to 0.05 g, An ionic water-soluble polymer powder was obtained in the same manner as in Production Example 1. This was designated as Comparative Production Example 1 and the physical properties are shown in Table 1.
（イオン性水溶性高分子粉末の比較製造例２）イオン交換水を１０１．１０ｇ、０．２重量％メチレンビスアクリルアミド水溶液を０．１９ｇに変えたこと以外は、イオン性水溶性高分子粉末の製造例２と同様な方法でイオン性水溶性高分子の粉末を得た。このものを比較製造例２とし物性を表１に示す。 (Comparative Production Example 2 of Ionic Water-soluble Polymer Powder) Except for changing the ion-exchanged water to 101.10 g and the 0.2 wt% methylenebisacrylamide aqueous solution to 0.19 g, An ionic water-soluble polymer powder was obtained in the same manner as in Production Example 2. This is referred to as Comparative Production Example 2, and the physical properties are shown in Table 1.
（イオン性水溶性高分子粉末の比較製造例３）イオン交換水を１１６．７１ｇ、０．２重量％メチレンビスアクリルアミド水溶液を０．１９ｇに変えたこと以外は、イオン性水溶性高分子粉末の製造例２と同様な方法でイオン性水溶性高分子の粉末を得た。このものを比較製造例３とし物性を表１に示す。 (Comparative Production Example 3 of Ionic Water-soluble Polymer Powder) Except for changing 116.71 g of ion-exchanged water and 0.19 g of 0.2 wt% methylenebisacrylamide aqueous solution, An ionic water-soluble polymer powder was obtained in the same manner as in Production Example 2. This was designated as Comparative Production Example 3, and the physical properties are shown in Table 1.
（イオン性水溶性高分子粉末の比較製造例４）イオン性水溶性高分子粉末の製造例２で示したイオン性水溶性高分子の油中水型エマルジョンにＨＬＢ１３．３のポリオキシアルキレンアルキルエーテルを添加混合した後、このものを造粒乾燥装置内に噴霧し、造粒した粉末の水分が５重量％以下になるまで乾燥造粒し、イオン性水溶性高分子の粉末を得た。このものを比較製造例４とし物性を表１に、このものを０．２重量％濃度となるよう水に溶解した場合の粘度の変化を図１に示す。 (Comparative Production Example 4 of Ionic Water-soluble Polymer Powder) Polyoxyalkylene alkyl ether of HLB13.3 in the water-in-oil emulsion of the ionic water-soluble polymer shown in Production Example 2 of the ionic water-soluble polymer powder Then, this was sprayed into a granulating / drying apparatus, and dried and granulated until the moisture of the granulated powder became 5% by weight or less to obtain a powder of an ionic water-soluble polymer. This is Comparative Production Example 4, the physical properties are shown in Table 1, and the viscosity change when this is dissolved in water to a concentration of 0.2% by weight is shown in FIG.
（表１）
(Table 1)
（図１）
(Figure 1)
表１および図１で示した通り、製造例２と比較製造例４を比較すると製造例２のイオン性水溶性高分子粉末の方が、溶解開始後の０．２重量％水溶液粘度が速く上昇し、溶解速度が速いことが明白である。 As shown in Table 1 and FIG. 1, when Production Example 2 and Comparative Production Example 4 are compared, the ionic water-soluble polymer powder of Production Example 2 has a faster increase in viscosity of a 0.2 wt% aqueous solution after the start of dissolution. It is clear that the dissolution rate is fast.
製造例２で合成した粉末からなるイオン性水溶性高分子を水で溶解し０．２重量％の水溶液を調製し汚泥の脱水試験を行った。し尿余剰汚泥（ｐＨ７．０６、全ｓｓ分４６，２５０ｍｇ／Ｌ）を２００ｍＬポリビーカーに採取し、前記製造例２のイオン性水溶性高分子粉末の溶解液を汚泥に対する高分子の重量で３７０ｐｐｍ、４００ｐｐｍおよび４３０ｐｐｍ添加し、それぞれビーカー移し変え攪拌２０回行った後、Ｔ−１１７８Ｌのナイロン濾布で濾過し、４５秒後の濾液量を測定した。また濾過した汚泥のケーキ支持性（脱水ケーキの硬さ）を観察した後、プレス圧２ｋｇ／ｍ２で１分間脱水し濾布剥離性を確認し、ケーキ含水率（１０５℃、２０時間乾燥）を測定した。結果を表２に示す。 The ionic water-soluble polymer composed of the powder synthesized in Production Example 2 was dissolved in water to prepare a 0.2 wt% aqueous solution, and a sludge dehydration test was performed. Human waste surplus sludge (pH 7.06, total ss content 46,250 mg / L) was collected in a 200 mL poly beaker, and the ionic water-soluble polymer powder solution of Production Example 2 was 370 ppm by weight of the polymer with respect to sludge. 400 ppm and 430 ppm were added, each was transferred to a beaker and stirred 20 times, then filtered through a T-1178 L nylon filter cloth, and the amount of filtrate after 45 seconds was measured. Moreover, after observing the cake supportability (hardness of the dehydrated cake) of the filtered sludge, it was dehydrated at a press pressure of 2 kg / m 2 for 1 minute to confirm the filter cloth peelability, and the moisture content of the cake (105 ° C., dried for 20 hours) Was measured. The results are shown in Table 2.
（比較例２） イオン性水溶性高分子粉末を比較製造例２としたこと以外は、実施例２と同様な方法で汚泥の脱水試験を行った。結果を表２に示す。 Comparative Example 2 A sludge dewatering test was performed in the same manner as in Example 2 except that the ionic water-soluble polymer powder was changed to Comparative Production Example 2. The results are shown in Table 2.
（表２）
(Table 2)
表２で示した通り製造例２と比較製造例２のイオン性水溶性高分子粉末を比較すると、電荷内包率の高い製造例２イオン性水溶性高分子粉末の方が４５秒後の濾液量は多く、ケーキ支持性、濾布剥離性に優れ、脱水ケーキの含水率が大きく低減することが出来ることが明白である。 As shown in Table 2, when the ionic water-soluble polymer powders of Production Example 2 and Comparative Production Example 2 are compared, Production Example 2 with higher charge inclusion rate The amount of filtrate after 45 seconds is higher with the ionic water-soluble polymer powder. It is clear that the cake supportability and filter cloth peelability are excellent, and the moisture content of the dehydrated cake can be greatly reduced.
製造例３および製造例４で合成した粉末からなるイオン性水溶性高分子を水で溶解し０．２重量％の水溶液を調製し汚泥の脱水試験を行った。食肉余剰汚泥（ｐＨ６．６４、全ｓｓ分２４，０００ｍｇ／Ｌ）を２００ｍＬポリビーカーに採取し、前記製造例３のイオン性水溶性高分子粉末の溶解液を汚泥に対する高分子の重量で４００ｐｐｍ、５００ｐｐｍおよび６００ｐｐｍ添加し、それぞれＣＳＴ１０００ｒｐｍで３０秒間攪拌混合を行った後＃２０２のナイロン濾布で濾過し、４５秒後の濾液量を測定した。また濾過した汚泥のケーキ支持性（脱水ケーキの硬さ）を観察した後、プレス圧３ｋｇ／ｍ２で３０秒間脱水し濾布剥離性を確認し、ケーキ含水率（１０５℃、２０時間乾燥）を測定した。結果を表３に示す。 The ionic water-soluble polymer composed of the powder synthesized in Production Example 3 and Production Example 4 was dissolved in water to prepare a 0.2% by weight aqueous solution, and a sludge dehydration test was performed. Meat surplus sludge (pH 6.64, total ss content 24,000 mg / L) was collected in a 200 mL poly beaker, and the ionic water-soluble polymer powder solution of Production Example 3 was 400 ppm by weight of the polymer with respect to sludge. 500 ppm and 600 ppm were added, each was stirred and mixed at CST 1000 rpm for 30 seconds, filtered through a nylon filter cloth of # 202, and the amount of filtrate after 45 seconds was measured. Moreover, after observing the cake supportability (hardness of the dehydrated cake) of the filtered sludge, it was dehydrated at a press pressure of 3 kg / m 2 for 30 seconds to confirm the filter cloth peelability, and the moisture content of the cake (105 ° C, dried for 20 hours) Was measured. The results are shown in Table 3.
（比較例３） イオン性水溶性高分子粉末を比較製造例３としたこと以外は、実施例３と同様な方法で汚泥の脱水試験を行った。結果を表３に示す。
Comparative Example 3 A sludge dewatering test was performed in the same manner as in Example 3 except that the ionic water-soluble polymer powder was changed to Comparative Production Example 3. The results are shown in Table 3.
（表３）
(Table 3)
表３で示した通り製造例３と比較製造例３のイオン性水溶性高分子粉末を比較すると、電荷内包率の高い製造例３のイオン性水溶性高分子粉末の方が特に高添加量範囲での４５秒後濾液量が極度に多く、ケーキ支持性、濾布剥離性に優れ、脱水ケーキの含水率が大きく低減することが出来ることが明白である。 When the ionic water-soluble polymer powders of Production Example 3 and Comparative Production Example 3 are compared as shown in Table 3, the ionic water-soluble polymer powder of Production Example 3 having a higher charge encapsulation rate is particularly high in the addition amount range. After 45 seconds, the amount of filtrate is extremely large, the cake supportability and the filter cloth peelability are excellent, and it is clear that the moisture content of the dehydrated cake can be greatly reduced.
製造例１で合成したイオン性水溶性高分子粉末を水で溶解し０．２重量％の水溶液を調製し製紙スラッジの脱水試験を行った。製紙スラッジ（ｐＨ６．９０、全ｓｓ分１１，７５０ｍｇ／Ｌ）を２００ｍＬポリビーカーに採取し、アニオン性高分子凝集剤（ハイモロックＶ−３２０）の０．１重量％水溶液を汚泥に対して高分子の重量で５ｐｐｍ、１０ｐｐｍおよび２０ｐｐｍ添加した後、前記製造例１のイオン性水溶性高分子粉末の溶解液を汚泥に対する高分子の重量でそれぞれ１０ｐｐｍ、２０ｐｐｍ、４０ｐｐｍ添加し、それぞれスパチュラで５０回攪拌しさらにビーカー移し変え６回行った後＃２０２のナイロン濾布で濾過し、４５秒後の濾液量を測定した。また濾過した汚泥のケーキ支持性（脱水ケーキの硬さ）を観察した後、プレス圧４ｋｇ／ｍ２で６０秒間脱水し濾布剥離性を確認し、ケーキ含水率（１０５℃、２０時間乾燥）を測定した。結果を表４に示す。 The ionic water-soluble polymer powder synthesized in Production Example 1 was dissolved in water to prepare a 0.2 wt% aqueous solution, and a paper sludge dehydration test was performed. Paper sludge (pH 6.90, total ss content 11,750 mg / L) was collected in a 200 mL poly beaker, and 0.1 wt% aqueous solution of anionic polymer flocculant (Himoloc V-320) was polymerized with respect to sludge. 5 ppm, 10 ppm and 20 ppm were added, and then the ionic water-soluble polymer powder solution of Production Example 1 was added at 10 ppm, 20 ppm and 40 ppm by weight of the polymer with respect to sludge, respectively, and each was stirred 50 times with a spatula. Further, the beaker was transferred six times and then filtered through # 202 nylon filter cloth, and the filtrate amount after 45 seconds was measured. Moreover, after observing the cake supportability (the hardness of the dewatered cake) of the filtered sludge, it was dehydrated at a press pressure of 4 kg / m 2 for 60 seconds to confirm the filter cloth peelability, and the cake moisture content (105 ° C., dried for 20 hours) Was measured. The results are shown in Table 4.
（比較例４） 製造例１のイオン性水溶性高分子粉末を比較製造例１としたこと以外は、実施例４と同様な方法で製紙スラッジの脱水試験を行った。結果を表４に示す。 Comparative Example 4 A paper sludge dehydration test was conducted in the same manner as in Example 4 except that the ionic water-soluble polymer powder of Production Example 1 was changed to Comparative Production Example 1. The results are shown in Table 4.
（表４）
(Table 4)
表４で示した通り製造例１と比較製造例１のイオン性水溶性高分子粉末を比較すると、電荷内包率の高い製造例１のイオン性水溶性高分子粉末の方は４５秒後濾液量に大きな差は無いものの、ケーキ支持性、濾布剥離性に優れ、脱水ケーキの含水率が大きく低減することが出来る、カチオン性高分子の添加量を低減することが可能であることが明白である。 As shown in Table 4, when the ionic water-soluble polymer powders of Production Example 1 and Comparative Production Example 1 are compared, the ionic water-soluble polymer powder of Production Example 1 having a higher charge encapsulation rate is 45 seconds later. Although there is no significant difference, it is clear that the cake supportability and filter cloth peelability are excellent, the water content of the dehydrated cake can be greatly reduced, and the addition amount of the cationic polymer can be reduced. is there.
製造例１で合成した粉末からなるイオン性水溶性高分子を水で溶解し０．２重量％の水溶液を調製し、カナディアンスタンダードフリーネス４００ｍｌに叩解したＬＢＫＰを用いて抄紙試験およびブリット式ダイナミックジャーテスターによる歩留試験を行った。ＬＢＫＰを１．０％濃度とした後、市販の炭酸カルシウムをパルプ重量に対して２０％、硫酸アルミニウム（Ａｌ２Ｏ３分として８．０％）を対パルプ重量１．２％添加して硫酸でｐＨ７．５に調整した。この製紙原料に前記製造例１のイオン性水溶性高分子粉末溶解液をパルプ重量に対して高分子の重量で２００ｐｐｍになるように添加した後３０秒攪拌した。その後、タッピスタンダードシートマシンで坪量８０ｇ／ｍ２となるように抄紙し、得られた湿紙を４Ｋｇ／ｃｍ２で５分間プレス後、１０５℃回転式ドライヤーで３分間乾燥し手抄き紙を得た。この手抄き紙を２０℃、６５％ ＨＲの条件下に２４時間調湿した後、成紙の地合いの様子、不透明度およびＩＳＯ白色度を評価した。結果を表５に示す。 The ionic water-soluble polymer composed of the powder synthesized in Production Example 1 was dissolved in water to prepare a 0.2 wt% aqueous solution, and a papermaking test and a Brit type dynamic jar tester using LBKP beaten to 400 ml of Canadian Standard Freeness A yield test was conducted. After adjusting LBKP to a concentration of 1.0%, commercially available calcium carbonate is added to the pulp weight by 20%, and aluminum sulfate (8.0% as Al 2 O 3 minutes) is added to the pulp weight by 1.2%. To pH 7.5. The ionic water-soluble polymer powder solution of Production Example 1 was added to this papermaking raw material so that the weight of the polymer was 200 ppm relative to the weight of the pulp, followed by stirring for 30 seconds. After that, paper is made with a Tappi standard sheet machine so that the basis weight is 80 g / m 2 , the obtained wet paper is pressed at 4 kg / cm 2 for 5 minutes, and then dried with a 105 ° C. rotary dryer for 3 minutes, and handmade paper. Got. This handmade paper was conditioned for 24 hours under the conditions of 20 ° C. and 65% HR, and then the texture of the finished paper, opacity and ISO whiteness were evaluated. The results are shown in Table 5.
ＬＢＫＰを０．５％濃度とした後、市販の炭酸カルシウムをパルプ重量に対して２０％、硫酸アルミニウム（Ａｌ２Ｏ３分として８．０％）を対パルプ重量１．２％添加して硫酸でｐＨ７．５に調整した。この製紙原料をブリット式ダイナミックジャーテスターに投入し、前記製造例１のイオン性水溶性高分子粉末溶解液をパルプ重量に対して高分子の重量で２００ｐｐｍになるように添加した。２０００ｒｐｍで３０秒攪拌した後、攪拌回転数を８００ｒｐｍに落とし白水を１０秒間排出し、その後、３０秒間白水を回収した。回収した白水のＳＳ濃度および５２５℃で２時間灰化して得られた灰分量から、製紙原料の総歩留率および灰分歩留率を求めた。結果を表５に示す。 After adjusting LBKP to a concentration of 0.5%, commercially available calcium carbonate is added to the pulp weight by 20%, aluminum sulfate (8.0% as Al2O3) is added to the pulp weight by 1.2%, and the pH is adjusted to 7. with sulfuric acid. Adjusted to 5. This papermaking raw material was put into a Brit type dynamic jar tester, and the ionic water-soluble polymer powder solution of Production Example 1 was added so that the polymer weight was 200 ppm relative to the pulp weight. After stirring at 2000 rpm for 30 seconds, the stirring rotation speed was reduced to 800 rpm, white water was discharged for 10 seconds, and then white water was collected for 30 seconds. From the SS concentration of the collected white water and the amount of ash obtained by ashing at 525 ° C. for 2 hours, the total yield and the ash yield of the papermaking raw material were determined. The results are shown in Table 5.
（比較例５） 製造例１のイオン性水溶性高分子粉末を比較製造例１としたこと以外は、実施例５と同様な方法で抄紙試験および歩留試験を行い、成紙の地合いの様子、不透明度、ＩＳＯ白色度、製紙原料の総歩留率および灰分歩留率を求めた。結果を表５に示す。 (Comparative Example 5) A papermaking test and a yield test were performed in the same manner as in Example 5 except that the ionic water-soluble polymer powder of Production Example 1 was changed to Comparative Production Example 1, and the texture of the finished paper The opacity, ISO whiteness, total yield of papermaking raw materials, and ash content yield were determined. The results are shown in Table 5.
（表５）
(Table 5)
表５で示した通り製造例１と比較製造例１のイオン性水溶性高分子粉末を比較すると、電荷内包率の高い製造例１のイオン性水溶性高分子粉末の方は地合い評価、不透明度、ＩＳＯ白色度、総歩留率および灰分歩留率について比較製造例１のイオン性水溶性高分子より優位にあることが明白である。 As shown in Table 5, when the ionic water-soluble polymer powders of Production Example 1 and Comparative Production Example 1 are compared, the ionic water-soluble polymer powder of Production Example 1 having a higher charge encapsulation rate is evaluated for texture and opacity. It is apparent that ISO whiteness, total yield rate, and ash yield rate are superior to the ionic water-soluble polymer of Comparative Production Example 1.
水で２．０重量％に調整したベントナイト分散液および製造例１で合成した粉末からなるイオン性水溶性高分子を水で溶解し０．２重量％とした水溶液を調製し、カナディアンスタンダードフリーネス４００ｍｌに叩解したＬＢＫＰを用いて抄紙試験およびブリット式ダイナミックジャーテスターによる歩留試験を行った。ＬＢＫＰを１．０％濃度とした後、市販の炭酸カルシウムをパルプ重量に対して２０％、硫酸アルミニウム（Ａｌ２Ｏ３分として８．０％）を対パルプ重量１．２％添加して硫酸でｐＨ７．５に調整した。この製紙原料に前記ベントナイト分散液をパルプ重量に対してベントナイト１０００ｐｐｍとなるように添加した後１５秒攪拌し、次に製造例１のイオン性水溶性高分子粉末溶解液をパルプ重量に対して高分子の重量でそれぞれ１００ｐｐｍおよび２００ｐｐｍになるように添加した後さらに２０００ｒｐｍで３０秒攪拌した。その後、タッピスタンダードシートマシンで坪量８０ｇ／ｍ２となるように抄紙し、得られた湿紙を４Ｋｇ／ｃｍ２で５分間プレス後、１０５℃回転式ドライヤーで３分間乾燥し手抄き紙を得た。この手抄き紙を２０℃、６５％ ＨＲの条件下に２４時間調湿した後、成紙の地合いの様子、不透明度およびＩＳＯ白色度を評価した。結果を表６に示す。 An aqueous solution prepared by dissolving the ionic water-soluble polymer consisting of the bentonite dispersion adjusted to 2.0 wt% with water and the powder synthesized in Production Example 1 with water to 0.2 wt% was prepared, and Canadian Standard Freeness 400 ml A papermaking test and a yield test using a britt type dynamic jar tester were conducted using LBKP beaten in the above. After adjusting LBKP to a concentration of 1.0%, commercially available calcium carbonate is added to the pulp weight by 20%, and aluminum sulfate (8.0% as Al 2 O 3 minutes) is added to the pulp weight by 1.2%. To pH 7.5. The bentonite dispersion was added to the papermaking raw material so that the bentonite was 1000 ppm with respect to the pulp weight and then stirred for 15 seconds. Next, the ionic water-soluble polymer powder solution of Production Example 1 was added to the pulp weight. After adding the molecular weight to 100 ppm and 200 ppm, respectively, the mixture was further stirred at 2000 rpm for 30 seconds. After that, paper is made with a Tappi standard sheet machine so that the basis weight is 80 g / m 2 , the obtained wet paper is pressed at 4 kg / cm 2 for 5 minutes, and then dried with a 105 ° C. rotary dryer for 3 minutes, and handmade paper. Got. This handmade paper was conditioned for 24 hours under the conditions of 20 ° C. and 65% HR, and then the texture of the finished paper, opacity and ISO whiteness were evaluated. The results are shown in Table 6.
ＬＢＫＰを０．５％濃度とした後、市販の炭酸カルシウムをパルプ重量に対して２０％、硫酸アルミニウム（Ａｌ２Ｏ３分として８．０％）を対パルプ重量１．２％添加して硫酸でｐＨ７．５に調整した。この製紙原料をブリット式ダイナミックジャーテスターに投入し、前記ベントナイト分散液をパルプ重量に対してベントナイト１０００ｐｐｍとなるように添加した後２０００ｒｐｍで１５秒攪拌し、次に製造例１のイオン性水溶性高分子粉末溶解液をパルプ重量に対して高分子の重量でそれぞれ１００ｐｐｍおよび２００ｐｐｍになるように添加した。次に、２０００ｒｐｍで３０秒攪拌した後、攪拌回転数を８００ｒｐｍに落とし白水を１０秒間排出し、その後、３０秒間白水を回収した。回収した白水のＳＳ濃度および５２５℃で２時間灰化して得られた灰分量から、製紙原料の総歩留率および灰分歩留率を求めた。結果を表６に示す。 After adjusting LBKP to a concentration of 0.5%, commercially available calcium carbonate is added to the pulp weight by 20%, aluminum sulfate (8.0% as Al2O3) is added to the pulp weight by 1.2%, and the pH is adjusted to 7. with sulfuric acid. Adjusted to 5. This papermaking raw material was put into a britt dynamic jar tester, and the bentonite dispersion was added so that the bentonite was 1000 ppm relative to the weight of the pulp, followed by stirring at 2000 rpm for 15 seconds. The molecular powder solution was added so that the weight of the polymer was 100 ppm and 200 ppm, respectively, with respect to the pulp weight. Next, after stirring at 2000 rpm for 30 seconds, the stirring rotation speed was reduced to 800 rpm, white water was discharged for 10 seconds, and then white water was collected for 30 seconds. From the SS concentration of the collected white water and the amount of ash obtained by ashing at 525 ° C. for 2 hours, the total yield and the ash yield of the papermaking raw material were determined. The results are shown in Table 6.
（比較例６） ベントナイトを添加しないこと以外は、実施例６と同様な方法で抄紙試験および歩留試験を行い、成紙の地合いの様子、不透明度、ＩＳＯ白色度、製紙原料の総歩留率および灰分歩留率を求めた。結果を表６に示す。 (Comparative Example 6) A papermaking test and a yield test were performed in the same manner as in Example 6 except that bentonite was not added, and the texture of the formed paper, the opacity, the ISO whiteness, and the total yield of the papermaking raw material Rate and ash yield were determined. The results are shown in Table 6.
（比較例７） 製造例１のイオン性水溶性高分子粉末を比較製造例１としたこと以外は、実施例６と同様な方法で抄紙試験および歩留試験を行い、成紙の地合いの様子、不透明度、ＩＳＯ白色度、製紙原料の総歩留率および灰分歩留率を求めた。結果を表６に示す。 (Comparative Example 7) A papermaking test and a yield test were performed in the same manner as in Example 6 except that the ionic water-soluble polymer powder of Production Example 1 was changed to Comparative Production Example 1, and the texture of the finished paper The opacity, ISO whiteness, total yield of papermaking raw materials, and ash content yield were determined. The results are shown in Table 6.
（表６）
(Table 6)
表６で示したように、実施例６は比較例６および７と比較して、総歩留率、灰分歩留率を大きく向上する効果が得られることが明白である。特に、灰分の歩留向上効果が高い。 As shown in Table 6, it is apparent that Example 6 has an effect of greatly improving the total yield rate and the ash content rate as compared with Comparative Examples 6 and 7. In particular, the effect of improving the yield of ash is high.
水で０．２重量％に調整したアニオン性高分子（アクリル酸ナトリウム２０ｍｏｌ％−アクリルアミド８０ｍｏｌ％共重合物、０．５重量％食塩水溶液粘度１２０．０（ｍＰａ・ｓ）（食塩濃度４重量％、Ｂ型粘度計２号ローター、６０ｒｐｍ、２５℃測定））および、製造例１で合成したイオン性水溶性高分子粉末を水で溶解し０．２重量％とした水溶液を調製し、カナディアンスタンダードフリーネス４００ｍｌに叩解したＬＢＫＰを用いて抄紙試験およびブリット式ダイナミックジャーテスターによる歩留試験を行った。ＬＢＫＰを１．０％濃度とした後、市販の炭酸カルシウムをパルプ重量に対して２０％、硫酸アルミニウム（Ａｌ２Ｏ３分として８．０％）を対パルプ重量１．２％添加して硫酸でｐＨ７．５に調整した。この製紙原料に前記アニオン性高分子水溶液をパルプ重量に対してアニオン性高分子１００ｐｐｍとなるように添加した後１５秒攪拌し、次に製造例１のイオン性水溶性高分子粉末溶解液をパルプ重量に対して高分子の重量でそれぞれ１００ｐｐｍおよび２００ｐｐｍになるように添加した後さらに２０００ｒｐｍで３０秒攪拌した。その後、タッピスタンダードシートマシンで坪量８０ｇ／ｍ２となるように抄紙し、得られた湿紙を４Ｋｇ／ｃｍ２で５分間プレス後、１０５℃回転式ドライヤーで３分間乾燥し手抄き紙を得た。この手抄き紙を２０℃、６５％ ＨＲの条件下に２４時間調湿した後、成紙の地合いの様子、不透明度およびＩＳＯ白色度を評価した。結果を表７に示す。 Anionic polymer adjusted to 0.2 wt% with water (sodium acrylate 20 mol% -acrylamide 80 mol% copolymer, 0.5 wt% saline solution viscosity 120.0 (mPa · s) (salt concentration 4 wt% B type viscometer No. 2 rotor, 60 rpm, measured at 25 ° C.)) and an aqueous solution prepared by dissolving the ionic water-soluble polymer powder synthesized in Production Example 1 with water to 0.2 wt%, Canadian Standard A papermaking test and a yield test using a britt dynamic jar tester were conducted using LBKP beaten to 400 ml of freeness. After adjusting LBKP to a concentration of 1.0%, commercially available calcium carbonate is added to the pulp weight by 20%, and aluminum sulfate (8.0% as Al 2 O 3 minutes) is added to the pulp weight by 1.2%. To pH 7.5. The anionic polymer aqueous solution was added to the papermaking raw material so that the anionic polymer was 100 ppm based on the weight of the pulp, followed by stirring for 15 seconds. Next, the ionic water-soluble polymer powder solution of Production Example 1 was added to the pulp. After adding the polymer to 100 ppm and 200 ppm by weight with respect to the weight, the mixture was further stirred at 2000 rpm for 30 seconds. After that, paper is made with a Tappi standard sheet machine so that the basis weight is 80 g / m 2 , the obtained wet paper is pressed at 4 kg / cm 2 for 5 minutes, and then dried with a 105 ° C. rotary dryer for 3 minutes, and handmade paper. Got. This handmade paper was conditioned for 24 hours under the conditions of 20 ° C. and 65% HR, and then the texture of the finished paper, opacity and ISO whiteness were evaluated. The results are shown in Table 7.
ＬＢＫＰを０．５％濃度とした後、市販の炭酸カルシウムをパルプ重量に対して２０％、硫酸アルミニウム（Ａｌ２Ｏ３分として８．０％）を対パルプ重量１．２％添加して硫酸でｐＨ７．５に調整した。この製紙原料をブリット式ダイナミックジャーテスターに投入し、前記アニオン性高分子溶解液をパルプ重量に対してアニオン性高分子重量で１００ｐｐｍとなるように添加した後２０００ｒｐｍで１５秒攪拌し、次に製造例１のイオン性水溶性高分子粉末溶解液をパルプ重量に対して高分子の重量でそれぞれ１００ｐｐｍおよび２００ｐｐｍになるように添加した。次に、２０００ｒｐｍで３０秒攪拌した後、攪拌回転数を８００ｒｐｍに落とし白水を１０秒間排出し、その後、３０秒間白水を回収した。回収した白水のＳＳ濃度および５２５℃で２時間灰化して得られた灰分量から、製紙原料の総歩留率および灰分歩留率を求めた。結果を表７に示す。 After adjusting LBKP to a concentration of 0.5%, commercially available calcium carbonate is added to the pulp weight by 20%, aluminum sulfate (8.0% as Al2O3) is added to the pulp weight by 1.2%, and the pH is adjusted to 7. with sulfuric acid. Adjusted to 5. This papermaking raw material was put into a britt dynamic jar tester, and the anionic polymer solution was added so that the anionic polymer weight was 100 ppm with respect to the pulp weight, and then stirred at 2000 rpm for 15 seconds, and then manufactured. The ionic water-soluble polymer powder solution of Example 1 was added so that the polymer weight was 100 ppm and 200 ppm, respectively, with respect to the pulp weight. Next, after stirring at 2000 rpm for 30 seconds, the stirring rotation speed was reduced to 800 rpm, white water was discharged for 10 seconds, and then white water was collected for 30 seconds. From the SS concentration of the collected white water and the amount of ash obtained by ashing at 525 ° C. for 2 hours, the total yield and the ash yield of the papermaking raw material were determined. The results are shown in Table 7.
（比較例８） アニオン性高分子を添加しないこと以外は、実施例７と同様な方法で抄紙試験および歩留試験を行い、成紙の地合いの様子、不透明度、ＩＳＯ白色度、製紙原料の総歩留率および灰分歩留率を求めた。結果を表７に示す。 (Comparative Example 8) A papermaking test and a yield test were performed in the same manner as in Example 7 except that the anionic polymer was not added, and the condition of the formation of the paper, the opacity, the ISO whiteness, The total yield rate and ash yield rate were determined. The results are shown in Table 7.
（比較例９） 製造例１のイオン性水溶性高分子粉末を比較製造例１としたこと以外は、実施例７と同様な方法で抄紙試験および歩留試験を行い、成紙の地合いの様子、不透明度、ＩＳＯ白色度、製紙原料の総歩留率および灰分歩留率を求めた。結果を表７に示す。 (Comparative example 9) Except having made the ionic water-soluble polymer powder of the manufacture example 1 into the comparative manufacture example 1, the papermaking test and the yield test were done by the same method as Example 7, and the state of the formation of the paper The opacity, ISO whiteness, total yield of papermaking raw materials, and ash content yield were determined. The results are shown in Table 7.
（表７）
(Table 7)
表７で示したように、実施例７は比較例８および９と比較して、総歩留率、灰分歩留率を大きく向上する効果が得られることが明白である。実施例６と同様に、本発明の粉末からなるイオン性水溶性高分子は特に灰分の歩留向上効果が高い。
As shown in Table 7, it is clear that Example 7 has an effect of greatly improving the total yield rate and the ash content rate as compared with Comparative Examples 8 and 9. As in Example 6, the ionic water-soluble polymer comprising the powder of the present invention has a particularly high ash yield improvement effect.
Claims (11)
Ｒ１は水素又はメチル基、Ｒ２、Ｒ３は炭素数１〜３のアルキル基、アルコキシル基あるいはベンジル基、Ｒ４は水素、炭素数１〜３のアルキル基、アルコキシル基あるいはベンジル基であり、同種でも異種でも良い。ＡはＯまたはＮＨ、Ｂは炭素数２〜４のアルキレン基またはアルコキシレン基、Ｘ１ −は陰イオンをそれぞれ表す。
Ｒ５、Ｒ６は水素又はメチル基、Ｒ７、Ｒ８は炭素数１〜３のアルキル基、アルコキシ基あるいはベンジル基、Ｘ２ −は陰イオンをそれぞれ表す。
Ｒ９は水素またはＣＨ２ＣＯＯＹ２、Ｒ１０は水素、メチル基またはＣＯＯＹ２、ＱはＳＯ３ −、Ｃ６Ｈ４ＳＯ３ −、ＣＯＮＨＣ（ＣＨ３）２ＣＨ２ＳＯ３ −、Ｃ６Ｈ４ＣＯＯ−あるいはＣＯＯ−であり、Ｙ１は水素または陽イオンをそれぞれ表す。 The ionic water-soluble polymer contains 5 to 100 mol% of a monomer represented by the following general formula (1) and / or (2), 0 to 50 mol% of a monomer represented by the following general formula (3), and water It is obtained by copolymerizing a polyfunctional monomer having 0 to 95 mol% of a nonionic monomer and a plurality of unsaturated double bonds, according to any one of claims 1 to 3. An ionic water-soluble polymer comprising the described powder.
R 1 is hydrogen or a methyl group, R 2 and R 3 are an alkyl group having 1 to 3 carbon atoms, an alkoxyl group or a benzyl group, and R 4 is hydrogen, an alkyl group having 1 to 3 carbon atoms, an alkoxyl group or a benzyl group. , Same or different. A is O or NH, B is an alkylene group or an alkoxylene group having 2 to 4 carbon atoms, X 1 - represents respectively an anion.
R 5 and R 6 each represent hydrogen or a methyl group, R 7 and R 8 each represent an alkyl group having 1 to 3 carbon atoms, an alkoxy group, or a benzyl group, and X 2 − represents an anion.
R 9 is hydrogen or CH 2 COOY 2 , R 10 is hydrogen, methyl group or COOY 2 , Q is SO 3 − , C 6 H 4 SO 3 − , CONHC (CH 3 ) 2 CH 2 SO 3 − , C 6 H 4 COO - or COO - and is, Y 1 represents respectively hydrogen or a cation.
Ｒ９は水素またはＣＨ２ＣＯＯＹ２、Ｒ１０は水素、メチル基またはＣＯＯＹ２、ＱはＳＯ３ −、Ｃ６Ｈ４ＳＯ３ −、ＣＯＮＨＣ（ＣＨ３）２ＣＨ２ＳＯ３ −、Ｃ６Ｈ４ＣＯＯ−あるいはＣＯＯ−であり、Ｙ１は水素または陽イオンをそれぞれ表す。
The papermaking method according to claim 9, wherein the anionic substance is a polymer of 3 to 100 mol% of a monomer represented by the following general formula (3) and a water-soluble nonionic monomer. .
R 9 is hydrogen or CH 2 COOY 2 , R 10 is hydrogen, methyl group or COOY 2 , Q is SO 3 − , C 6 H 4 SO 3 − , CONHC (CH 3 ) 2 CH 2 SO 3 − , C 6 H 4 COO - or COO - and is, Y 1 represents respectively hydrogen or a cation.
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