CN106518024B - The method for preparing activated alumina using aluminum i ndustry surface treatment solid waste - Google Patents
The method for preparing activated alumina using aluminum i ndustry surface treatment solid waste Download PDFInfo
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- CN106518024B CN106518024B CN201610828245.2A CN201610828245A CN106518024B CN 106518024 B CN106518024 B CN 106518024B CN 201610828245 A CN201610828245 A CN 201610828245A CN 106518024 B CN106518024 B CN 106518024B
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- solid waste
- activated alumina
- aluminum
- ndustry
- aluminium
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 89
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000002910 solid waste Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000004381 surface treatment Methods 0.000 title claims abstract description 22
- 239000004411 aluminium Substances 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000004094 surface-active agent Substances 0.000 claims abstract description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000008187 granular material Substances 0.000 claims abstract description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920002301 cellulose acetate Polymers 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001354 calcination Methods 0.000 claims abstract description 5
- 239000000084 colloidal system Substances 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 235000019441 ethanol Nutrition 0.000 claims description 15
- -1 phosphate ester Chemical class 0.000 claims description 15
- 229910019142 PO4 Inorganic materials 0.000 claims description 13
- 239000010452 phosphate Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- 229920000926 Galactomannan Polymers 0.000 claims description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 9
- 239000000194 fatty acid Substances 0.000 claims description 9
- 229930195729 fatty acid Natural products 0.000 claims description 9
- 235000002906 tartaric acid Nutrition 0.000 claims description 9
- 239000011975 tartaric acid Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 7
- 150000004665 fatty acids Chemical class 0.000 claims description 7
- 229910001415 sodium ion Inorganic materials 0.000 claims description 7
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 6
- 235000017858 Laurus nobilis Nutrition 0.000 claims description 5
- 235000005212 Terminalia tomentosa Nutrition 0.000 claims description 5
- 244000125380 Terminalia tomentosa Species 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000010335 hydrothermal treatment Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 claims 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 230000036571 hydration Effects 0.000 claims 1
- 238000006703 hydration reaction Methods 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 9
- 238000001027 hydrothermal synthesis Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 9
- 239000011148 porous material Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000003837 high-temperature calcination Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ANBZTKMYPDMODS-YPKPFQOOSA-N (z)-n,n-diethyloctadec-9-enamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)N(CC)CC ANBZTKMYPDMODS-YPKPFQOOSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007560 sedimentation technique Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910003158 γ-Al2O3 Inorganic materials 0.000 description 1
- 229910006636 γ-AlOOH Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/635—0.5-1.0 ml/g
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
- C04B35/6365—Cellulose or derivatives thereof
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/94—Products characterised by their shape
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
It the present invention relates to the use of the method that aluminum i ndustry surface treatment solid waste prepares activated alumina.1) preparation method of the activated alumina is the following steps are included: wash aluminium solid waste, removing impurity；2) dilute hydrochloric acid solution and triethanolamine solution is added toward aluminium solid waste, adjusts pH value, recrystallizes alumina particle；3) aluminium solid waste dry, pulverize, surfactant is added, is ground to micron order using colloid mill, obtains material A；4) material A and cellulose acetate, expanding agent are mixed, is placed in disk bowling machine and prepares spheric granules；5) spheric granules is subjected to hydro-thermal process, reuses low molecule alcohol washing, obtains material B；6) material B is placed in baking oven dry, then is placed in Muffle furnace calcining, cooled to room temperature to get.Activated alumina obtained not only has biggish specific surface area and Kong Rong, and the aperture of reasonable layout also has good crushing strength and catalytic activity.
Description
Technical field
The invention belongs to the preparation fields of inorganic material, and in particular to be prepared using aluminum i ndustry surface treatment solid waste
The method of activated alumina.
Background technique
Aluminium alloy be dosage be only second to steel and occupy second structural metallic materials, since aluminum alloy chemically property is living
It sprinkles, in order to improve its corrosion resistance and decorative performance, aluminium alloy extrusions often needs to be surface-treated.In aluminium shape surface processing
Master operation includes the processes such as degreasing, alkaline etching, pickling, oxidation, sealing of hole and coloring, in these processes, about 1~2% aluminium
Alloy is dissolved in tank liquor in the form of an ion.Big quantity of fluid can be taken away from each treatment trough in aluminum profile treatment process simultaneously, need
It is cleaned with a large amount of water, handles every square metre of aluminum profile according to statistics and about consume 65~180L water, 1 100,000 tons of annual output of aluminium profiles
Material enterprise, the year water consumption for aluminium material surface processing each process cleaning is about 2,000,000 m3, containing a large amount of in these industrial wastewaters
Aluminium ion and the metal ions such as a small amount of zinc, nickel, copper.It is general to be adjusted using neutralization to avoid direct emission from causing environmental pollution
Section and coagulant sedimentation technique are handled, and wastewater sludge is obtained, and sludge is further dehydrated as Aluminiferous waste slag.Aluminum profile is useless
The content of scale slag very high purity, the oxide of aluminium, hydroxide and its hydrate reaches 90% or more.Calculation shows that only one
Item produces 20000 tons of aluminum profile of heat-tinting production line per year, annual to generate about 4000 tons of waste residue, high number.Currently, China's aluminium
The waste water alkaline residue millions of tons that profile factory generates every year, if taking the processing mode directly filled, cause resources of production with
The waste of land resource also brings secondary pollution, therefore, carries out resource utilization with important to aluminum section industrial wastewater alkaline residues
Meaning.
Activated alumina is the solid matter of a kind of porosity, high degree of dispersion, has large specific surface area, excellent adsorption, table
The characteristics of face acidity, good thermal stability, it is widely used in chemical industry as catalyst, carrier and adsorbent.Active oxidation
Aluminium not only requires the aperture of biggish specific surface area and Kong Rong and reasonable layout when applying as catalyst or carrier,
It should also have good mechanical strength and heat resistance, especially pore-size distribution, i.e., effective Kong Rong influences most catalytic perfomance
Greatly, but domestic existing active alumina product can reach the seldom of requirement, and from catalytic industries requirement, there is also big gaps.Benefit
It is rich in oxide, hydroxide and its hydrate of aluminium with section aluminum waste water alkaline residue, prepares activated alumina using it as raw material,
Realize that the comprehensive utilization of solid waste is of great significance.Chinese patent application 200410014031.9, which discloses, utilizes aluminium
The method that profile factory industrial silt prepares activated alumina, this method utilize nitric acid using aluminium section bar plant industrial silt as raw material
Method carries out mixing pugging, and spherical walk is made, and dries, and sintering obtains γ-Al2O3For the activated alumina of crystal phase, but using should
The activated alumina specific surface area of method preparation is 180~450mm2/ g, average pore size be 3~7nm and Kong Rongwei 0.15~
0.8cm3/ g, range fluctuation is larger, influences its catalytic activity, additionally due to formed with nitric acid, when drying activated alumina, meeting
A large amount of nitrogen oxides is generated, environment is seriously polluted.Separately there is Chinese patent application 201310336464.5 to disclose a kind of from containing
The method that aluminium oxide is extracted in waste slag of aluminum, this method are by gangue and/or flyash and a certain amount of red mud (gangue, powder
Coal ash and red mud are Aluminiferous waste slag) and sodium carbonate mixing after be sintered, hydrochloric acid acidleach, concentrated hydrochloric acid crystal aluminum chloride, ammonium hydroxide
Precipitation aluminium hydroxide, calcining obtain aluminium oxide, but in hydrochloric acid acidleach, the impurity such as Fe, Ca, Mg in Aluminiferous waste slag can be with
Al dissolve out together, influence the preparation of aluminium oxide, need complicated dedoping step.
Summary of the invention
The purpose of the present invention is to provide a kind of simple process, at low cost, product purity is high, does not generate pollution to environment
Activated alumina preparation method, this method are surface-treated solid waste as raw material using aluminum i ndustry, realize aluminium solid waste
The regeneration of object, preparation-obtained activated alumina not only catalytic activity and selectivity with higher also have larger
Specific surface area and Kong Rong and reasonable layout aperture, while there is good mechanical strength and heat resistance.
The present invention is by following technical solution to be attained in that
The method for preparing activated alumina using aluminum i ndustry surface treatment solid waste, comprising the following steps:
(1) aluminum i ndustry is surface-treated solid waste 2~6 times wash with distilled water, it is useless that removing remains in aluminium solid
Sodium ion and other soluble impurities in gurry；
(2) the aluminium solid waste addition dilute hydrochloric acid solution obtained toward step (1), adjusting pH value to 2~4, static 1~
2min；Add triethanolamine solution, adjusting pH value to 10~12, static 1~2min；
(3) the aluminium solid waste handled through step (2) is placed in 60~80 DEG C of baking ovens and is dried, then powder
Broken, the surfactant that aluminium solid waste weight 1~3% is added stirs evenly, using colloid mill by aluminium solid waste
Composition granule is ground to 5~50 μm, obtains material A；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, is placed in disk bowling machine and is prepared ball
Shape particle, the diameter of particle are 2~8mm；
(5) spheric granules for obtaining step (4), is placed in 4~6h of processing in hydrothermal treatment device, and temperature is 90~100
DEG C, then spheric granules is carried out washing 1~2 time using low molecule alcohol, obtains material B；
(6) material B is placed in baking oven and carries out temperature programming drying, be subsequently placed in 450~800 DEG C of Muffle furnaces and calcined
2~6h, cooled to room temperature is to get activated alumina.
Wherein, the surfactant of the step (3) is phosphate ester surfactant and fatty acid surfactant
At least one of.
Further, the phosphate ester surfactant is single Tryfac 5573, laurel alcohol ether phosphate, palm
One of stearyl alcohol phosphate, polyoxyethylene monoalkyl phosphoric acid esters and polyoxyethylene bisalkyl phosphate.
Further, the fatty acid surfactant is that fatty acyl amide or fatty acid ester non-ionic surface are living
Property agent, such as: lauric acid amide of ethanol, ethoxylated fatty-acid methyl ester.
Further, the expanding agent of the step (4) is by galactomannans and tartaric acid with (1~3): 1 mass ratio
Composition.
Preferably, the expanding agent of the step (4) is made of galactomannans and tartaric acid with the mass ratio of 2:1.
Further, the dosage of step (4) cellulose acetate is the 4~10% of aluminum profile waste residue weight, expanding agent
Dosage be aluminium solid waste weight 10~30%.
Further, the cellulose acetate and expanding agent were the powder of 500~800 meshes.
Further, the low molecule alcohol of the step (5) is one of isopropanol, ethyl alcohol, n-butanol.
Further, the temperature programming of the step (6) is dry specifically: dry initial temperature is 60 DEG C, heating rate
For 60 DEG C/h, drying time is 3~5h.
For the present invention using aluminum i ndustry surface treatment solid waste as raw material, the aluminium solid waste often contains sodium
Ion and other soluble impurities, especially sodium ion are affected to the performance of aluminium oxide.Preparation of the sodium ion in aluminium oxide
Exist mostly in the form of sodium oxide molybdena in the process, it is thicker that sodium oxide molybdena will lead to alumina grain, and specific surface area is reduced, and crystal form is not advised
Then, the adverse effects such as refractoriness are reduced, therefore the present invention cleans aluminium solid waste using distilled water, to reduce sodium
The interference that ion and other soluble impurities prepare aluminium oxide.
In addition, aluminium solid waste is rich in oxide, hydroxide and its hydrate of aluminium, wherein the hydrogen-oxygen of the aluminium
For compound mostly with the presence of amorphous body structure, the specific surface and Kong Rongjun of these amorphous hydroted aluminas are smaller, will lead to pore size distribution
Widthization, it is therefore necessary to remove.The present invention carries out pH value adjusting to aluminum profile waste residue respectively using dilute hydrochloric acid and triethanolamine, when
When pH is lower, tiny amorphous hydroted alumina is very fast compared with alumina dissolution in acid environment, as pH higher, dissolution
Aluminium hydroxide can be deposited on alumina particle, and alumina particle is promoted to recrystallize, and form that crystal grain is larger and uniform crystal.This
Outside, triethanolamine can be used as pH poising agent, can also form complex compound with aluminium atom, change the coordination structure of aluminium atom, from
And change interparticle accumulation mode, influence the distribution and size in aperture.
The present invention is mixed with phosphoric acid ester or fatty acid surfactant and aluminium solid waste, is ground, institute
The oxygen atom in surfactant structure and γ-AlOOH, the Al (OH) in aluminium solid waste stated3In-OH pass through hydrogen
Bond is combined, and advantageously reduces the stress of capillary wall, avoids collapsing and part that interlayer occurs in high-temperature burning process
The sintering of micropore, with the hole for forming uniform pore diameter and being reasonably distributed.In addition, surfactant is opened by reducing the surface of material
Power makes powder be not easy to assemble, and is conducive to grind.
Preferably, using phosphoric acid ester as surfactant, the phosphate ester surfactant is by introducing non-gold
Belong to element phosphor, there is adjustment effect to activated alumina surface acidity, is conducive to the anti-caking power for improving activated alumina, promotees
Hold larger, pore-size distribution concentration, even-grained activated alumina into formation specific surface area and hole.
The present invention promotes powder to prepare spherolite using cellulose acetate as binder, while having the function of reaming, passes through
The releasable carbon dioxide gas of high-temperature calcination may advantageously facilitate the formation of hole, and discharge the space occupied originally, increase hole
Hold.
Using galactomannans and winestone acid blend as expanding agent, the galactomannans has resistance to the present invention
The good feature of acid, salt tolerant, stability after high-temp combustion, is conducive to expanded hole in addition, the kinetic diameter of its molecule is larger
Diameter；The tartaric acid may advantageously facilitate the formation of hole through the releasable carbon dioxide gas of high-temperature calcination, and have certain
Caking property, can promote powder compacting, improve the intensity of alumina spherulite, improve pore structure.
Since the pore size in aluminium oxide spheric granules is irregular, there are capillarities when dry, will lead to water
Divide evaporation very uneven, so that macropore is easy to cause granule strength to drop prior to small orifice drying, using rapid draing under higher temperature
Low and generate crack, the present invention uses temperature programming drying means, temperature is gradually increased in longer time, and in drying
It is stirred continuously material in the process, avoids the occurrence of above situation.
Compared with prior art, the beneficial effects of the present invention are:
(1) prior art mostly uses commercial alumina or aluminium hydroxide to prepare activated alumina for main material, and of the invention
The regeneration of solid waste is realized as raw material using aluminum i ndustry surface treatment solid waste, and avoids aluminium solid
Waste pollution environment has great environment protection significance.
(2) activated alumina preparation method of the present invention, simple process, at low cost, product purity is high, to environment not
Generate pollution, the activated alumina being prepared not only catalytic activity and selectivity with higher also have and biggish compare table
The aperture of area and Kong Rong and reasonable layout, while there is good mechanical strength and heat resistance.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below, but the present invention is not by following embodiment
It records and limits.
Embodiment 1
The method that the embodiment of the present invention 1 prepares activated alumina using aluminum i ndustry surface treatment solid waste, including with
Lower step:
(1) aluminum i ndustry is surface-treated solid waste 5 times wash with distilled water, removing remains in aluminium solid waste
In sodium ion and other soluble impurities；
(2) dilute hydrochloric acid solution, adjusting pH value to 3, static 1min is added toward the aluminium solid waste that step (1) obtains；
Add triethanolamine solution, adjusting pH value to 11, static 1min；
(3) the aluminium solid waste handled through step (2) is placed in 60 DEG C of baking ovens and is dried, then crushed, add
The laurel alcohol ether phosphate for entering aluminium solid waste weight 2% stirs evenly, using colloid mill by aluminium solid waste
Grain is ground to 25 μm, obtains material A；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, wherein the dosage of cellulose acetate
It is the 6% of aluminium solid waste weight, expanding agent is made of galactomannans and tartaric acid with the mass ratio of 2:1, is used
Amount is the 20% of aluminium solid waste weight, is subsequently placed in disk bowling machine and prepares spheric granules, the diameter of particle is
6mm；
(5) spheric granules for obtaining step (4), is placed in hydrothermal treatment device and handles 5h, and temperature is 100 DEG C, then
Washing 1 time is carried out to spheric granules using isopropanol, obtains material B；
(6) material B is placed in baking oven and carries out temperature programming drying, specifically: dry initial temperature is 60 DEG C, heating speed
Degree is 60 DEG C/h, drying time 4h, is subsequently placed in 700 DEG C of Muffle furnaces and carries out calcining 4h, cooled to room temperature is to get activity
Aluminium oxide.
Embodiment 2
The embodiment of the present invention 2 prepares the method and embodiment of activated alumina using aluminum i ndustry surface treatment solid waste
1 is similar, and difference is, the surfactant being added in step (3) is fatty acyl amide nonionic surface active agent, as coconut palm
Oleic acid diethyl amide.
Embodiment 3
The embodiment of the present invention 3 prepares the method and embodiment of activated alumina using aluminum i ndustry surface treatment solid waste
1 is similar, and difference is, the surfactant being added in step (3) is the mixing of phosphoric acid ester and fatty acid surfactant
Object is made of laurel alcohol ether phosphate and lauric acid amide of ethanol with the mass ratio of 1:1.
Embodiment 4
The embodiment of the present invention 4 prepares the method and embodiment of activated alumina using aluminum i ndustry surface treatment solid waste
1 is similar, and difference is, the expanding agent in step (4) is made of galactomannans and tartaric acid with the mass ratio of 1:1.
Embodiment 5
The embodiment of the present invention 5 prepares the method and embodiment of activated alumina using aluminum i ndustry surface treatment solid waste
1 is similar, and difference is, the expanding agent in step (4) is made of galactomannans and tartaric acid with the mass ratio of 3:1.
Embodiment 6
The method that the embodiment of the present invention 6 prepares activated alumina using aluminum i ndustry surface treatment solid waste, including with
Lower step:
(1) aluminum i ndustry is surface-treated solid waste 2 times wash with distilled water, removing remains in aluminium solid waste
In sodium ion and other soluble impurities；
(2) dilute hydrochloric acid solution, adjusting pH value to 4, static 2min is added toward the aluminium solid waste that step (1) obtains；
Add triethanolamine solution, adjusting pH value to 10, static 2min；
(3) the aluminium solid waste handled through step (2) is placed in 80 DEG C of baking ovens and is dried, then crushed, add
The laurel alcohol ether phosphate for entering aluminium solid waste weight 3% stirs evenly, using colloid mill by aluminium solid waste
Grain is ground to 25 μm, obtains material A；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, wherein the dosage of cellulose acetate
It is the 10% of aluminium solid waste weight, expanding agent is made of galactomannans and tartaric acid with the mass ratio of 2:1, is used
Amount is the 30% of aluminium solid waste weight, is subsequently placed in disk bowling machine and prepares spheric granules, the diameter of particle is
6mm；
(5) spheric granules for obtaining step (4), is placed in hydrothermal treatment device and handles 6h, and temperature is 100 DEG C, then
Washing 2 times is carried out to spheric granules using isopropanol, obtains material B；
(6) material B is placed in baking oven and carries out temperature programming drying, specifically: dry initial temperature is 60 DEG C, heating speed
Degree is 60 DEG C/h, drying time 5h, is subsequently placed in 800 DEG C of Muffle furnaces and carries out calcining 6h, cooled to room temperature is to get activity
Aluminium oxide.
Comparative example 1
Comparative example 1 of the present invention prepares the method and embodiment of activated alumina using aluminum i ndustry surface treatment solid waste
1 is similar, and difference is, is washed using isopropanol to spheric granules in step (5), is changed to using deionized water to spherical
Grain is washed.
The main character of activated alumina made from 1-6 of the embodiment of the present invention and comparative example 1
| Group | Specific surface area (m2/g) | Kong Rong (cm3/g) | Average pore size (nm) | Crushing strength (N.-1) |
| Embodiment 1 | 382 | 0.572 | 6.47 | 220 |
| Embodiment 2 | 370 | 0.553 | 6.32 | 215 |
| Embodiment 3 | 400 | 0.635 | 6.72 | 242 |
| Embodiment 4 | 364 | 0.540 | 6.23 | 209 |
| Embodiment 5 | 375 | 0.557 | 6.30 | 214 |
| Embodiment 6 | 372 | 0.560 | 6.50 | 217 |
| Comparative example 1 | 350 | 0.492 | 5.82 | 212 |
As seen from the above table, the activated alumina being prepared using activated alumina preparation method of the present invention is all had big
The characteristics of Kong Rong, bigger serface: Kong Rong >=0.5cm3/ g, specific surface area >=200m2/g.By embodiment 1-3 it is found that surface is living
Property agent be phosphoric acid ester and fatty acid surfactant mixture, i.e., both formed with the mass ratio of 1:1, active oxygen obtained
Specific surface area, Kong Rong, average pore size, the crushing strength for changing aluminium are best；By embodiment 1,4,5 it is found that expanding agent is by galactomannan
Glycan and tartaric acid are formed with the proportion of 2:1, and activated alumina performance obtained is preferable；By comparative example 1 it is found that using low molecule
High-temperature calcination again after alcohols washs spheric granules is conducive to hole diameter enlargement, increases specific surface area and Kong Rong, improves crushing
Intensity.
Test example one, activated alumina produced by the present invention are compared with the catalytic performance of commercial product
With commercially available activated alumina, (Shandong Bo Yang new material Science and Technology Co., Ltd. is provided, specific surface area respectively
326m2/ g, Kong Rong 0.431cm3/ g, average pore size 5.32nm) and the activity that is prepared of 1-5 of the embodiment of the present invention and comparative example 1
Aluminium oxide investigates catalyst to the conversion ratio and selectivity for preparing isobutene using biological isobutanol evaporation as catalyst.
As a result it see the table below.
| Testing index | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Commercial product |
| Conversion ratio (%) | 95.32 | 93.68 | 98.84 | 92.73 | 94.70 | 87.12 | 82.74 |
| Selectivity (%) | 94.60 | 93.35 | 97.72 | 91.21 | 93.38 | 82.53 | 76.47 |
As seen from the above table, had using the activated alumina that activated alumina preparation method of the present invention is prepared excellent
Catalytic activity and selectivity can make isobutanol conversion ratio with higher in reaction, and improve the selectivity of product isobutene,
Good catalytic activity is shown, it is especially best with activated alumina catalytic performance made from embodiment 3, it is significantly better than commercially available
Activated alumina.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
It also should be regarded as protection scope of the present invention into retouching.
Claims (8)
1. the method for preparing activated alumina using aluminum i ndustry surface treatment solid waste, which is characterized in that including following step
It is rapid:
(1) aluminum i ndustry is surface-treated solid waste 2~6 times wash with distilled water, removing remains in aluminium solid waste
In sodium ion and other soluble impurities；The aluminium solid waste is rich in oxide, hydroxide and the hydration of aluminium
Object；
(2) the aluminium solid waste addition dilute hydrochloric acid solution obtained toward step (1), adjusting pH value to 2~4, static 1~
2min；Add triethanolamine solution, adjusting pH value to 10~12, static 1~2min；
(3) the aluminium solid waste handled through step (2) is placed in 60~80 DEG C of baking ovens and is dried, then crushed, add
The surfactant for entering aluminium solid waste weight 1~3% stirs evenly, using colloid mill by aluminium solid waste composition granule
5~50 μm are ground to, material A is obtained；
(4) material A for obtaining step (3) is mixed with cellulose acetate, expanding agent, is placed in disk bowling machine and is prepared spherical
Grain, the diameter of particle are 2~8mm；
(5) spheric granules for obtaining step (4) is placed in 4~6h of processing in hydrothermal treatment device, and temperature is 90~100 DEG C, so
Spheric granules is carried out washing 1~2 time using low molecule alcohol afterwards, obtains material B；
(6) material B is placed in baking oven to carry out temperature programming dry, be subsequently placed in 450~800 DEG C of Muffle furnaces carry out calcining 2~
6h, cooled to room temperature is to get activated alumina；
The surfactant of the step (3) is at least one in phosphate ester surfactant and fatty acid surfactant
Kind.
2. the method according to claim 1 for preparing activated alumina using aluminum i ndustry surface treatment solid waste,
It is characterized in that, the expanding agent of the step (4) is by galactomannans and tartaric acid with (1~3): 1 mass ratio forms.
3. the method according to claim 1 for preparing activated alumina using aluminum i ndustry surface treatment solid waste,
It is characterized in that, the dosage of step (4) cellulose acetate is the 4~10% of aluminium solid waste weight.
4. the method according to claim 1 for preparing activated alumina using aluminum i ndustry surface treatment solid waste,
It is characterized in that, the dosage of step (4) expanding agent is the 10~30% of aluminium solid waste weight.
5. the method according to claim 1 for preparing activated alumina using aluminum i ndustry surface treatment solid waste,
It is characterized in that, the low molecule alcohol of the step (5) is one of isopropanol, ethyl alcohol, n-butanol.
6. the method according to claim 1 for preparing activated alumina using aluminum i ndustry surface treatment solid waste,
It is characterized in that, the phosphate ester surfactant is single Tryfac 5573, laurel alcohol ether phosphate, palm stearin alcohol phosphoric acid
One of ester, polyoxyethylene monoalkyl phosphoric acid esters and polyoxyethylene bisalkyl phosphate.
7. the method according to claim 1 for preparing activated alumina using aluminum i ndustry surface treatment solid waste,
It is characterized in that, the fatty acid surfactant is fatty acyl amide or fatty acid ester nonionic surface active agent.
8. the method according to claim 1 for preparing activated alumina using aluminum i ndustry surface treatment solid waste,
It being characterized in that, the temperature programming of the step (6) is dry specifically: dry initial temperature is 60 DEG C, and heating rate is 60 DEG C/h,
Drying time is 3~5h.
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| CN107971039B (en) * | 2017-11-30 | 2020-10-30 | 中海油天津化工研究设计院有限公司 | Method for preparing alumina carrier or composite oxide carrier from organic aluminum waste |
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| CN102351224A (en) * | 2011-07-01 | 2012-02-15 | 佛山科学技术学院 | Process for preparing active alumina from aluminum section industrial wastewater alkaline residues |
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