CA2568594C - Method for producing a dissovling pulp - Google Patents
Method for producing a dissovling pulp Download PDFInfo
- Publication number
- CA2568594C CA2568594C CA2568594A CA2568594A CA2568594C CA 2568594 C CA2568594 C CA 2568594C CA 2568594 A CA2568594 A CA 2568594A CA 2568594 A CA2568594 A CA 2568594A CA 2568594 C CA2568594 C CA 2568594C
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- lye
- weight
- content
- cellulose
- 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.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 229920002678 cellulose Polymers 0.000 claims abstract description 74
- 239000001913 cellulose Substances 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 60
- 238000000605 extraction Methods 0.000 claims abstract description 58
- 238000011282 treatment Methods 0.000 claims abstract description 41
- 238000004537 pulping Methods 0.000 claims abstract description 18
- 229920000875 Dissolving pulp Polymers 0.000 claims abstract description 11
- 238000004061 bleaching Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 239000003518 caustics Substances 0.000 claims description 39
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 14
- 229920000433 Lyocell Polymers 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 12
- 238000007669 thermal treatment Methods 0.000 claims description 10
- 229920003086 cellulose ether Polymers 0.000 claims description 9
- 238000001728 nano-filtration Methods 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 229920002301 cellulose acetate Polymers 0.000 claims description 4
- 238000000108 ultra-filtration Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 235000010981 methylcellulose Nutrition 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 208
- 235000011121 sodium hydroxide Nutrition 0.000 description 87
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 13
- 241001070947 Fagus Species 0.000 description 12
- 235000010099 Fagus sylvatica Nutrition 0.000 description 12
- 238000000746 purification Methods 0.000 description 12
- 239000012465 retentate Substances 0.000 description 10
- 239000012466 permeate Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 8
- 229920002488 Hemicellulose Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- 150000001720 carbohydrates Chemical class 0.000 description 6
- 235000014633 carbohydrates Nutrition 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000002655 kraft paper Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- -1 e.g. Polymers 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 229920001221 xylan Polymers 0.000 description 1
- 150000004823 xylans Chemical class 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT9532004A AT413548B (de) | 2004-06-02 | 2004-06-02 | Verfahren zur herstellung eines chemiezellstoffes und seine verwendung |
ATA953/2004 | 2004-06-02 | ||
PCT/AT2005/000171 WO2005118950A1 (de) | 2004-06-02 | 2005-05-20 | Verfahren zur herstellung eines chemiezellstoffes |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2568594A1 CA2568594A1 (en) | 2005-12-15 |
CA2568594C true CA2568594C (en) | 2013-07-16 |
Family
ID=34842282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2568594A Expired - Fee Related CA2568594C (en) | 2004-06-02 | 2005-05-20 | Method for producing a dissovling pulp |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1753908B1 (de) |
AT (1) | AT413548B (de) |
CA (1) | CA2568594C (de) |
NO (1) | NO338462B1 (de) |
WO (1) | WO2005118950A1 (de) |
ZA (1) | ZA200610044B (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT503610B1 (de) * | 2006-05-10 | 2012-03-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines zellstoffes |
AT503612A1 (de) * | 2006-05-10 | 2007-11-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines zellstoffes |
AT503611B1 (de) * | 2006-05-10 | 2009-05-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines zellstoffes |
EP2842182B1 (de) | 2012-04-26 | 2018-11-07 | Lenzing Aktiengesellschaft | Batterietrenner |
FI129086B (en) * | 2012-09-14 | 2021-06-30 | Teknologian Tutkimuskeskus Vtt Oy | Method for producing soluble pulp |
US20150380703A1 (en) | 2013-02-22 | 2015-12-31 | Lenzing Aktiengesellschaft | Battery separator |
CN104611973A (zh) * | 2013-11-04 | 2015-05-13 | 新疆光大山河化工科技有限公司 | 一种精制棉黑液处理工艺 |
WO2017044030A1 (en) * | 2015-09-07 | 2017-03-16 | Domsjö Fabriker Ab | Novel dissolving pulp |
JP2017224611A (ja) * | 2017-07-06 | 2017-12-21 | レンツィング アクチェンゲゼルシャフト | 電池セパレータ |
SE1850733A1 (en) * | 2018-06-15 | 2019-12-16 | Valmet Oy | Method and assembly for optimizing filtrate circulation in a kraft process |
SE546238C2 (en) * | 2022-06-27 | 2024-07-23 | Valmet Oy | Method for processing cellulose pulp obtained from a kraft process |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI49438C (fi) * | 1973-07-23 | 1980-12-23 | Keskuslaboratorio | Foerfarande foer avlaegsnande av hemicellulosa ur hemicellulosahaltiga alkaliloesningar i processcirkulation |
US4270914A (en) * | 1979-10-26 | 1981-06-02 | Borregaard Industries Limited | Process for controlling hemicellulose concentration during the mercerization of cellulose |
US5589053A (en) * | 1995-11-03 | 1996-12-31 | Huron Tech Incorporated | Electrolysis process for removal of caustic in hemicellulose caustic |
AU1136697A (en) * | 1995-12-23 | 1997-07-17 | Krebs & Co Ag | Process for purifying a liquid contaminated by filamentary molecules |
-
2004
- 2004-06-02 AT AT9532004A patent/AT413548B/de not_active IP Right Cessation
-
2005
- 2005-05-20 EP EP05741840.2A patent/EP1753908B1/de active Active
- 2005-05-20 CA CA2568594A patent/CA2568594C/en not_active Expired - Fee Related
- 2005-05-20 ZA ZA200610044A patent/ZA200610044B/xx unknown
- 2005-05-20 WO PCT/AT2005/000171 patent/WO2005118950A1/de not_active Application Discontinuation
-
2006
- 2006-11-24 NO NO20065354A patent/NO338462B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1753908B1 (de) | 2016-02-03 |
ATA9532004A (de) | 2005-08-15 |
CA2568594A1 (en) | 2005-12-15 |
WO2005118950A1 (de) | 2005-12-15 |
AT413548B (de) | 2006-03-15 |
ZA200610044B (en) | 2008-02-27 |
NO20065354L (no) | 2007-01-31 |
EP1753908A1 (de) | 2007-02-21 |
NO338462B1 (no) | 2016-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2568594C (en) | Method for producing a dissovling pulp | |
CN104981568B (zh) | 生产溶解浆的方法、溶解浆以及方法的用途 | |
JP5953909B2 (ja) | 溶解パルプの製造方法 | |
US8734612B2 (en) | Method and system for high alpha dissolving pulp production | |
JP2005506461A (ja) | ヘミセルロース含有バイオマスからヘミセルロースを分離する方法ならびにこの方法により得られるバイオマスおよびヘミセルロース | |
JP2022033903A (ja) | 架橋クラフトパルプの組成物及び方法 | |
WO2020251463A1 (en) | Fibers produced from recycled cellulosic waste material | |
CN109653012B (zh) | 一种利用秸秆或能源植物制备溶解浆的方法 | |
JP2002506133A (ja) | セルロースパルプ製造の際に添加剤でセルロース材を処理する方法および装置 | |
WO2013004909A1 (en) | Method of removing hemicelluloses from pulp | |
US10415183B2 (en) | Method of producing regenerated cellulose and hemicellulose | |
JP2014037482A (ja) | 溶解パルプ | |
US7854847B2 (en) | Process of purifying wood pulp with caustic-borate solution and recovering the purifying chemical | |
EP2006441B1 (de) | Verfahren und System zum Bleichen von Lignocellulose enthaltenden Zellstoffen nach dem Kochen mit Soda und Anthrachinon | |
US2061616A (en) | Production of cellulose | |
JPS5836289A (ja) | リグニン含有量が低いセルロ−スの製造方法 | |
JP2014029044A (ja) | 溶解クラフトパルプの製造方法 | |
CN115637605B (zh) | 一种莱赛尔溶解浆及其制备方法 | |
SU1730299A1 (ru) | Способ получени целлюлозы дл химической переработки | |
JP6518287B2 (ja) | 溶解クラフトパルプの製造方法 | |
CN112048929B (zh) | 一种低固形预水解分离木、竹材原料半纤维素的方法 | |
RU2535804C2 (ru) | Способ и система производства растворимой целлюлозной массы с высоким содержанием альфа-целлюлозы | |
JP6334083B2 (ja) | 溶解パルプ | |
JP6221218B2 (ja) | 溶解クラフトパルプの製造方法 | |
JP2014034744A (ja) | 溶解クラフトパルプの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20220520 |