SE470065C - Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning - Google Patents
Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekningInfo
- Publication number
- SE470065C SE470065C SE9101301A SE9101301A SE470065C SE 470065 C SE470065 C SE 470065C SE 9101301 A SE9101301 A SE 9101301A SE 9101301 A SE9101301 A SE 9101301A SE 470065 C SE470065 C SE 470065C
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- chlorine
- treatment
- acid
- magnesium
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims abstract description 17
- 238000004061 bleaching Methods 0.000 title claims abstract description 13
- 229940043430 calcium compound Drugs 0.000 title claims abstract 5
- 150000001674 calcium compounds Chemical class 0.000 title claims abstract 5
- 239000011777 magnesium Substances 0.000 title claims description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims description 11
- 229910052749 magnesium Inorganic materials 0.000 title claims description 11
- 229920001131 Pulp (paper) Polymers 0.000 title description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000007844 bleaching agent Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 8
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000002681 magnesium compounds Chemical class 0.000 claims abstract 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 6
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 5
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 16
- 150000001342 alkaline earth metals Chemical class 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 238000007792 addition Methods 0.000 description 12
- 150000002978 peroxides Chemical class 0.000 description 12
- 229910021645 metal ion Inorganic materials 0.000 description 6
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011121 hardwood Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 229910001425 magnesium ion Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004155 Chlorine dioxide Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 235000019398 chlorine dioxide Nutrition 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- -1 peroxide peroxide compounds Chemical class 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 229910021654 trace metal Inorganic materials 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
-
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Noodles (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Stringed Musical Instruments (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Materials For Medical Uses (AREA)
Priority Applications (20)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9101301A SE470065C (sv) | 1991-04-30 | 1991-04-30 | Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning |
| DE69213080T DE69213080D1 (de) | 1991-04-30 | 1992-04-08 | Verfahren zum Bleichen von Lignocellulose enthaltendem Zellstoff |
| EP94203640A EP0679760B1 (en) | 1991-04-30 | 1992-04-08 | Process for bleaching of lignocellulose-containing pulp |
| AT94203640T ATE173518T1 (de) | 1991-04-30 | 1992-04-08 | Verfahren zum bleichen von lignocellulose- enthaltendem zellstoff |
| DE69227640T DE69227640T2 (de) | 1991-04-30 | 1992-04-08 | Verfahren zum Bleichen von Lignocellulose-enthaltendem Zellstoff |
| AT92201005T ATE141971T1 (de) | 1991-04-30 | 1992-04-08 | Verfahren zum bleichen von lignocellulose enthaltendem zellstoff |
| ES92201005T ES2091395T3 (es) | 1991-04-30 | 1992-04-08 | Procedimiento para blanqueo de pasta papelera que contiene lignocelulosa. |
| EP92201005A EP0511695B2 (en) | 1991-04-30 | 1992-04-08 | Process for bleaching of lignocellulose-containing pulp |
| NZ242465A NZ242465A (en) | 1991-04-30 | 1992-04-23 | Delignification and bleaching of chemical pulp with acid and a magnesium |
| CA002139246A CA2139246A1 (en) | 1991-04-30 | 1992-04-27 | Process for bleaching of lignocellulose-containing pulp |
| FI921886A FI111964B (fi) | 1991-04-30 | 1992-04-27 | Menetelmä lignoselluloosapitoisen massan valkaisemiseksi |
| CA002067296A CA2067296C (en) | 1991-04-30 | 1992-04-27 | Process for bleaching of lignocellulose-containing pulp |
| AU15149/92A AU651192C (en) | 1991-04-30 | 1992-04-27 | Process for bleaching of lignocellulose-containing pulp |
| ZA923073A ZA923073B (en) | 1991-04-30 | 1992-04-28 | Process for bleaching of lignocellulose-containing pulp |
| MX9201966A MX9201966A (es) | 1991-04-30 | 1992-04-28 | Proceso para blanqueo de pasta que contiene lignocelulosa. |
| JP4134325A JP2592747B2 (ja) | 1991-04-30 | 1992-04-28 | リグノセルロース含有パルプの漂白方法 |
| BR929201554A BR9201554A (pt) | 1991-04-30 | 1992-04-28 | Processo para a deslignificacao e alvejamento de polpa contendo ligno-celulose quimicamente digerida |
| SU925011770A RU2039141C1 (ru) | 1991-04-30 | 1992-04-29 | Способ делигнификации и отбелки химически сваренной лигноцеллюлозосодержащей пульпы |
| NO19921671A NO180495C (no) | 1991-04-30 | 1992-04-29 | Fremgangsmåte ved delignifisering og bleking av kjemisk oppsluttet lignocelluloseholdig materiale |
| US08/754,884 US6398908B1 (en) | 1991-04-30 | 1996-11-22 | Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9101301A SE470065C (sv) | 1991-04-30 | 1991-04-30 | Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| SE9101301D0 SE9101301D0 (sv) | 1991-04-30 |
| SE9101301L SE9101301L (sv) | 1992-10-31 |
| SE470065B SE470065B (sv) | 1993-11-01 |
| SE470065C true SE470065C (sv) | 1996-01-15 |
Family
ID=20382601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9101301A SE470065C (sv) | 1991-04-30 | 1991-04-30 | Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning |
Country Status (14)
| Country | Link |
|---|---|
| EP (2) | EP0511695B2 (ja) |
| JP (1) | JP2592747B2 (ja) |
| AT (2) | ATE173518T1 (ja) |
| BR (1) | BR9201554A (ja) |
| CA (1) | CA2067296C (ja) |
| DE (2) | DE69213080D1 (ja) |
| ES (1) | ES2091395T3 (ja) |
| FI (1) | FI111964B (ja) |
| MX (1) | MX9201966A (ja) |
| NO (1) | NO180495C (ja) |
| NZ (1) | NZ242465A (ja) |
| RU (1) | RU2039141C1 (ja) |
| SE (1) | SE470065C (ja) |
| ZA (1) | ZA923073B (ja) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI89516B (fi) | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande foer blekning av cellulosamassa med otson |
| US6398908B1 (en) | 1991-04-30 | 2002-06-04 | Eka Nobel Ab | Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound |
| SE500353C2 (sv) * | 1992-10-26 | 1994-06-06 | Sca Wifsta Oestrand Ab | Peroxidblekning av sulfatmassa med tillsats av magnesium före blekningen |
| SE512137C2 (sv) * | 1992-10-29 | 2000-01-31 | Eka Chemicals Ab | Förfarande för blekning av lignocellulosahaltig massa |
| SE9203366L (sv) * | 1992-11-11 | 1994-05-12 | Mo Och Domsjoe Ab | Förfarande vid delignifiering och/eller blekning av cellulosamassa |
| US6007678A (en) * | 1992-11-27 | 1999-12-28 | Eka Nobel Ab | Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof |
| DE69420306T2 (de) * | 1993-04-20 | 2000-04-20 | Eka Chemicals Ab | Verfahren zum Bleichen von Lignozellulose-enthaltendem Zellstoff |
| SE500616C2 (sv) * | 1993-06-08 | 1994-07-25 | Kvaerner Pulping Tech | Blekning av kemisk massa med peroxid vid övertryck |
| US6605181B1 (en) * | 1993-10-01 | 2003-08-12 | Kvaerner Pulping Aktiebolag | Peroxide bleach sequence including an acidic bleach stage and including a wash stage |
| BE1007757A3 (fr) * | 1993-11-10 | 1995-10-17 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
| US6776876B1 (en) | 1994-10-13 | 2004-08-17 | Andritz Oy | Method of treating cellulosic pulp to remove hexenuronic acid |
| FI102301B1 (fi) * | 1994-10-13 | 1998-11-13 | Ahlstrom Machinery Oy | Menetelmä selluloosamassojen käsittelemiseksi |
| DE19516151A1 (de) * | 1995-05-03 | 1996-11-07 | Sven Siegle | Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung |
| FI105701B (fi) * | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
| JPH108092A (ja) * | 1996-06-21 | 1998-01-13 | Mitsubishi Paper Mills Ltd | 過酸化物漂白用安定化剤及びそれを用いた繊維系物質の漂白方法 |
| BE1010679A3 (fr) * | 1996-10-11 | 1998-11-03 | Solvay Interox | Procede de delignification et de blanchiment de pate a papier chimique. |
| ID23571A (id) * | 1997-08-25 | 2000-05-04 | Praxair Technology Inc | Metoda penerapan ozon dalam pemutihan ecf |
| JP2002266272A (ja) * | 2001-03-12 | 2002-09-18 | Nippon Paper Industries Co Ltd | セルロース質繊維材料パルプの漂白方法 |
| US6743332B2 (en) * | 2001-05-16 | 2004-06-01 | Weyerhaeuser Company | High temperature peroxide bleaching of mechanical pulps |
| KR100547491B1 (ko) * | 2005-04-27 | 2006-01-31 | 이권혁 | 대나무를 이용하여 생산하는 섬유용 펄프의 제조방법 및 그 펄프 |
| US9512237B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Method for inhibiting the growth of microbes with a modified cellulose fiber |
| US9512563B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Surface treated modified cellulose from chemical kraft fiber and methods of making and using same |
| US9511167B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
| CN104060491B (zh) | 2009-05-28 | 2017-04-12 | Gp纤维素股份有限公司 | 来自化学牛皮纸纤维的改性纤维素及其制造和使用方法 |
| US9719208B2 (en) | 2011-05-23 | 2017-08-01 | Gp Cellulose Gmbh | Low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same |
| CN104302831A (zh) | 2012-01-12 | 2015-01-21 | Gp纤维素股份有限公司 | 具有降低的黄变特性的低粘性牛皮纸纤维及其制造和使用方法 |
| AU2013249725B2 (en) | 2012-04-18 | 2017-04-20 | Gp Cellulose Gmbh | The use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber products |
| EP2900393B1 (en) * | 2012-09-27 | 2018-01-17 | Andritz Inc. | Chemical treatment of lignocellulosic fiber bundle material, and methods and systems relating thereto |
| BR112015018492A2 (pt) | 2013-02-08 | 2017-07-18 | Gp Cellulose Gmbh | fibra kraft e método para fazer polpa kraft oxidada |
| MX364379B (es) | 2013-03-14 | 2019-04-24 | Gp Cellulose Gmbh | Un metodo para preparar una fibra kraft altamente funcional y de baja viscosidad, usando una secuencia de blanqueamiento acido, y una fibra hecha por el proceso. |
| EP2971338A2 (en) | 2013-03-15 | 2016-01-20 | GP Cellulose GmbH | A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same |
| CN118308895A (zh) * | 2015-09-30 | 2024-07-09 | 伊梅里斯矿物有限公司 | 纸浆漂白或纸浆脱木素方法 |
| CA3040734A1 (en) | 2016-11-16 | 2018-05-24 | Gp Cellulose Gmbh | Modified cellulose from chemical fiber and methods of making and using the same |
| WO2021209586A1 (en) * | 2020-04-16 | 2021-10-21 | Bim Kemi Ab | Delignification process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3507744A (en) * | 1966-04-01 | 1970-04-21 | Kimberly Clark Co | Wood pulp bleaching process utilizing peroxide pyrophosphate high concentration compositions |
| SE335053B (ja) * | 1969-05-13 | 1971-05-10 | Mo Och Domsjoe Ab | |
| DE2742262C2 (de) * | 1977-09-20 | 1982-06-09 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung eines mittel- bis hochviskosen Nadelholz-Sulfitzellstoffs |
| FR2520397A1 (fr) * | 1982-01-28 | 1983-07-29 | Centre Tech Ind Papier | Procede pour le traitement de pates papetieres chimiques |
| FR2557605B1 (fr) * | 1983-12-29 | 1987-12-11 | Atochem | Procede de blanchiment de pates papetieres par le peroxyde d'hydrogene |
| JPH0364589A (ja) * | 1989-07-28 | 1991-03-19 | Mitsubishi Gas Chem Co Inc | 化学パルプの漂白方法 |
-
1991
- 1991-04-30 SE SE9101301A patent/SE470065C/sv not_active IP Right Cessation
-
1992
- 1992-04-08 EP EP92201005A patent/EP0511695B2/en not_active Expired - Lifetime
- 1992-04-08 DE DE69213080T patent/DE69213080D1/de not_active Expired - Lifetime
- 1992-04-08 DE DE69227640T patent/DE69227640T2/de not_active Expired - Fee Related
- 1992-04-08 ES ES92201005T patent/ES2091395T3/es not_active Expired - Lifetime
- 1992-04-08 AT AT94203640T patent/ATE173518T1/de not_active IP Right Cessation
- 1992-04-08 AT AT92201005T patent/ATE141971T1/de not_active IP Right Cessation
- 1992-04-08 EP EP94203640A patent/EP0679760B1/en not_active Expired - Lifetime
- 1992-04-23 NZ NZ242465A patent/NZ242465A/en unknown
- 1992-04-27 FI FI921886A patent/FI111964B/fi active
- 1992-04-27 CA CA002067296A patent/CA2067296C/en not_active Expired - Fee Related
- 1992-04-28 JP JP4134325A patent/JP2592747B2/ja not_active Expired - Fee Related
- 1992-04-28 ZA ZA923073A patent/ZA923073B/xx unknown
- 1992-04-28 BR BR929201554A patent/BR9201554A/pt not_active IP Right Cessation
- 1992-04-28 MX MX9201966A patent/MX9201966A/es unknown
- 1992-04-29 RU SU925011770A patent/RU2039141C1/ru not_active IP Right Cessation
- 1992-04-29 NO NO19921671A patent/NO180495C/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0511695B2 (en) | 2004-06-02 |
| EP0679760B1 (en) | 1998-11-18 |
| ES2091395T3 (es) | 1996-11-01 |
| EP0679760A1 (en) | 1995-11-02 |
| EP0511695A1 (en) | 1992-11-04 |
| AU651192B2 (en) | 1994-07-14 |
| SE470065B (sv) | 1993-11-01 |
| EP0511695B1 (en) | 1996-08-28 |
| ZA923073B (en) | 1992-12-30 |
| SE9101301D0 (sv) | 1991-04-30 |
| NO921671D0 (no) | 1992-04-29 |
| MX9201966A (es) | 1992-11-01 |
| NO180495B (no) | 1997-01-20 |
| NO921671L (no) | 1992-11-02 |
| ATE173518T1 (de) | 1998-12-15 |
| FI111964B (fi) | 2003-10-15 |
| RU2039141C1 (ru) | 1995-07-09 |
| JP2592747B2 (ja) | 1997-03-19 |
| AU1514992A (en) | 1993-03-11 |
| JPH05148784A (ja) | 1993-06-15 |
| SE9101301L (sv) | 1992-10-31 |
| ATE141971T1 (de) | 1996-09-15 |
| FI921886A (fi) | 1992-10-31 |
| BR9201554A (pt) | 1992-12-01 |
| DE69227640T2 (de) | 1999-05-06 |
| DE69227640D1 (de) | 1998-12-24 |
| CA2067296A1 (en) | 1992-10-31 |
| FI921886A0 (fi) | 1992-04-27 |
| NO180495C (no) | 2003-06-06 |
| NZ242465A (en) | 1993-12-23 |
| CA2067296C (en) | 1997-03-04 |
| DE69213080D1 (de) | 1996-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |