CA2200327C - Method of bleaching kraft pulp - Google Patents
Method of bleaching kraft pulp Download PDFInfo
- Publication number
- CA2200327C CA2200327C CA002200327A CA2200327A CA2200327C CA 2200327 C CA2200327 C CA 2200327C CA 002200327 A CA002200327 A CA 002200327A CA 2200327 A CA2200327 A CA 2200327A CA 2200327 C CA2200327 C CA 2200327C
- Authority
- CA
- Canada
- Prior art keywords
- stage
- peroxide
- pulp
- bleaching
- oxygen
- 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
- 238000004061 bleaching Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000002655 kraft paper Substances 0.000 title description 4
- 150000002978 peroxides Chemical class 0.000 claims abstract description 61
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 51
- 239000001301 oxygen Substances 0.000 claims abstract description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 34
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 14
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 7
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 5
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims abstract 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 18
- 230000002378 acidificating effect Effects 0.000 claims description 15
- 239000000460 chlorine Substances 0.000 claims description 15
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 13
- 229910052801 chlorine Inorganic materials 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 12
- 239000004155 Chlorine dioxide Substances 0.000 claims description 9
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 9
- 229920005610 lignin Polymers 0.000 claims description 3
- 239000002253 acid Substances 0.000 abstract description 8
- 229920002678 cellulose Polymers 0.000 abstract description 5
- 239000001913 cellulose Substances 0.000 abstract description 5
- 230000020477 pH reduction Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 12
- 230000029087 digestion Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- YWIULWOWYIZJBX-UHFFFAOYSA-N [Cl].O1C=COC=C1 Chemical compound [Cl].O1C=COC=C1 YWIULWOWYIZJBX-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- -1 for instance Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI944348 | 1994-09-19 | ||
| FI944348A FI944348A (sv) | 1994-09-19 | 1994-09-19 | Förfarande för blekning av kraftmassa |
| PCT/FI1995/000506 WO1996009434A1 (en) | 1994-09-19 | 1995-09-18 | Method of bleaching kraft pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2200327A1 CA2200327A1 (en) | 1996-03-28 |
| CA2200327C true CA2200327C (en) | 2002-03-19 |
Family
ID=8541400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002200327A Expired - Fee Related CA2200327C (en) | 1994-09-19 | 1995-09-18 | Method of bleaching kraft pulp |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA2200327C (sv) |
| FI (1) | FI944348A (sv) |
| SE (1) | SE9700992L (sv) |
| WO (1) | WO1996009434A1 (sv) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4685499A (en) | 1998-06-17 | 2000-01-05 | Alex-Alt Biomass, Inc. | Arundo donax pulp, paper products, and particle board |
| US20030029589A1 (en) * | 1998-06-17 | 2003-02-13 | Nile Fiber Pulp & Paper, Inc. | Total chlorine free bleaching of Arundo donax pulp |
| US9512237B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Method for inhibiting the growth of microbes with a modified cellulose fiber |
| 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 |
| CA2949518C (en) | 2009-05-28 | 2019-01-08 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
| AU2012268700B2 (en) | 2011-05-23 | 2017-02-02 | Gp Cellulose Gmbh | Softwood kraft fiber having improved whiteness and brightness and methods of making and using the same |
| TWI628331B (zh) | 2012-01-12 | 2018-07-01 | Ｇｐ纖維股份有限公司 | 具有降低黃化性質之低黏度牛皮紙纖維及其製造與使用方法 |
| EP3495550A1 (en) | 2012-04-18 | 2019-06-12 | 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 |
| WO2014122533A2 (en) | 2013-02-08 | 2014-08-14 | Gp Cellulose Gmbh | Softwood kraft fiber having an improved a-cellulose content and its use in the production of chemical cellulose products |
| RU2671653C2 (ru) | 2013-03-14 | 2018-11-06 | ДжиПи СЕЛЛЬЮЛОУС ГМБХ | Способ изготовления высокофункционального маловязкого крафтволокна с использованием последовательности кислотного отбеливания и волокно, изготовленное с помощью этого процесса |
| CN105143547B (zh) | 2013-03-15 | 2018-05-01 | Gp 纤维素股份有限公司 | 具有增高羧基含量的低粘度牛皮纸纤维及其制造和使用方法 |
| CA3040734A1 (en) | 2016-11-16 | 2018-05-24 | Gp Cellulose Gmbh | Modified cellulose from chemical fiber and methods of making and using the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE420430B (sv) * | 1978-02-17 | 1981-10-05 | Mo Och Domsjoe Ab | Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel |
| US4427490A (en) * | 1978-04-07 | 1984-01-24 | International Paper Company | Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives |
| DE3428352A1 (de) * | 1984-08-01 | 1986-02-13 | Degussa Ag, 6000 Frankfurt | Verfahren zur delignifizierung und bleiche von zellstoffen |
| FR2655668B1 (fr) * | 1989-12-11 | 1995-06-09 | Du Pin Cellulose | Procede de blanchiment de pates cellulosiques chimiques. |
-
1994
- 1994-09-19 FI FI944348A patent/FI944348A/sv not_active Application Discontinuation
-
1995
- 1995-09-18 WO PCT/FI1995/000506 patent/WO1996009434A1/en active Application Filing
- 1995-09-18 CA CA002200327A patent/CA2200327C/en not_active Expired - Fee Related
-
1997
- 1997-03-18 SE SE9700992A patent/SE9700992L/sv not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FI944348A (sv) | 1996-03-20 |
| SE9700992D0 (sv) | 1997-03-18 |
| FI944348A0 (sv) | 1994-09-19 |
| CA2200327A1 (en) | 1996-03-28 |
| SE9700992L (sv) | 1997-05-16 |
| WO1996009434A1 (en) | 1996-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |