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
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Materials For Medical Uses (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Stringed Musical Instruments (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Noodles (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 |
| AT94203640T ATE173518T1 (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 |
| EP94203640A EP0679760B1 (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 (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 |
| 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 |
| AU15149/92A AU651192C (en) | 1991-04-30 | 1992-04-27 | Process for bleaching of lignocellulose-containing pulp |
| CA002067296A CA2067296C (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 |
| 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 |
| 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. |
| BR929201554A BR9201554A (pt) | 1991-04-30 | 1992-04-28 | Processo para a deslignificacao e alvejamento de polpa contendo ligno-celulose quimicamente digerida |
| NO19921671A NO180495C (no) | 1991-04-30 | 1992-04-29 | Fremgangsmåte ved delignifisering og bleking av kjemisk oppsluttet lignocelluloseholdig materiale |
| SU925011770A RU2039141C1 (ru) | 1991-04-30 | 1992-04-29 | Способ делигнификации и отбелки химически сваренной лигноцеллюлозосодержащей пульпы |
| 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) | EP0679760B1 (de) |
| JP (1) | JP2592747B2 (de) |
| AT (2) | ATE141971T1 (de) |
| BR (1) | BR9201554A (de) |
| CA (1) | CA2067296C (de) |
| DE (2) | DE69227640T2 (de) |
| ES (1) | ES2091395T3 (de) |
| FI (1) | FI111964B (de) |
| MX (1) | MX9201966A (de) |
| NO (1) | NO180495C (de) |
| NZ (1) | NZ242465A (de) |
| RU (1) | RU2039141C1 (de) |
| SE (1) | SE470065C (de) |
| ZA (1) | ZA923073B (de) |
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 |
| ATE184060T1 (de) * | 1993-04-20 | 1999-09-15 | 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. |
| FI102301B (fi) * | 1994-10-13 | 1998-11-13 | Andritz Oy | Menetelmä selluloosamassojen käsittelemiseksi |
| US6776876B1 (en) | 1994-10-13 | 2004-08-17 | Andritz Oy | Method of treating cellulosic pulp to remove hexenuronic acid |
| 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 |
| 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 |
| 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 |
| KR101739949B1 (ko) | 2009-05-28 | 2017-05-25 | 게페 첼루로제 게엠베하 | 화학적 크래프트 섬유로부터의 변형된 셀룰로즈 및 이들을 제조 및 사용하는 방법 |
| US9512237B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Method for inhibiting the growth of microbes with a modified cellulose fiber |
| CA2836895C (en) | 2011-05-23 | 2020-03-31 | Arthur J. Nonni | Softwood kraft fiber having improved whiteness and brightness 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 |
| JP6242859B2 (ja) | 2012-04-18 | 2017-12-06 | ゲーペー ツェルローゼ ゲーエムベーハー | ビスコースおよび他の二次的繊維製品の製造のための、パルプを処理して、クラフトパルプの繊維への取り込みを改良するための界面活性剤の使用 |
| KR101602121B1 (ko) * | 2012-09-27 | 2016-03-09 | 안드리츠 인코포레이티드 | 리그노셀룰로오스 섬유 다발 물질의 화학적 처리, 및 그것과 관련된 방법 및 시스템 |
| US10151064B2 (en) | 2013-02-08 | 2018-12-11 | Gp Cellulose Gmbh | Softwood kraft fiber having an improved α-cellulose content and its use in the production of chemical cellulose products |
| 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. |
| AU2014229512B2 (en) | 2013-03-15 | 2017-06-22 | Gp Cellulose Gmbh | A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same |
| US20180155871A1 (en) * | 2015-09-30 | 2018-06-07 | Imerys Minerals Limited | Methods for bleaching aqueous pulps and compositions for use in these methods |
| 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 (de) * | 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 ES ES92201005T patent/ES2091395T3/es not_active Expired - Lifetime
- 1992-04-08 DE DE69227640T patent/DE69227640T2/de not_active Expired - Fee Related
- 1992-04-08 EP EP94203640A patent/EP0679760B1/de not_active Expired - Lifetime
- 1992-04-08 DE DE69213080T patent/DE69213080D1/de not_active Expired - Lifetime
- 1992-04-08 AT AT92201005T patent/ATE141971T1/de not_active IP Right Cessation
- 1992-04-08 EP EP92201005A patent/EP0511695B2/de not_active Expired - Lifetime
- 1992-04-08 AT AT94203640T patent/ATE173518T1/de not_active IP Right Cessation
- 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 ZA ZA923073A patent/ZA923073B/xx unknown
- 1992-04-28 JP JP4134325A patent/JP2592747B2/ja not_active Expired - Fee Related
- 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 NO NO19921671A patent/NO180495C/no not_active IP Right Cessation
- 1992-04-29 RU SU925011770A patent/RU2039141C1/ru not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2067296A1 (en) | 1992-10-31 |
| DE69227640D1 (de) | 1998-12-24 |
| SE9101301D0 (sv) | 1991-04-30 |
| AU651192B2 (en) | 1994-07-14 |
| DE69213080D1 (de) | 1996-10-02 |
| BR9201554A (pt) | 1992-12-01 |
| EP0511695B1 (de) | 1996-08-28 |
| SE470065B (sv) | 1993-11-01 |
| NO180495C (no) | 2003-06-06 |
| CA2067296C (en) | 1997-03-04 |
| ZA923073B (en) | 1992-12-30 |
| FI921886A (fi) | 1992-10-31 |
| EP0511695B2 (de) | 2004-06-02 |
| SE9101301L (sv) | 1992-10-31 |
| DE69227640T2 (de) | 1999-05-06 |
| JP2592747B2 (ja) | 1997-03-19 |
| EP0511695A1 (de) | 1992-11-04 |
| FI111964B (fi) | 2003-10-15 |
| JPH05148784A (ja) | 1993-06-15 |
| MX9201966A (es) | 1992-11-01 |
| NO180495B (no) | 1997-01-20 |
| NO921671L (no) | 1992-11-02 |
| ES2091395T3 (es) | 1996-11-01 |
| EP0679760B1 (de) | 1998-11-18 |
| AU1514992A (en) | 1993-03-11 |
| FI921886A0 (fi) | 1992-04-27 |
| NO921671D0 (no) | 1992-04-29 |
| EP0679760A1 (de) | 1995-11-02 |
| RU2039141C1 (ru) | 1995-07-09 |
| ATE141971T1 (de) | 1996-09-15 |
| NZ242465A (en) | 1993-12-23 |
| ATE173518T1 (de) | 1998-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |