ATE176808T1 - Verfahren zum bleichen von zellstoff mit chlorfreien chemikalien - Google Patents
Verfahren zum bleichen von zellstoff mit chlorfreien chemikalienInfo
- Publication number
- ATE176808T1 ATE176808T1 AT93910051T AT93910051T ATE176808T1 AT E176808 T1 ATE176808 T1 AT E176808T1 AT 93910051 T AT93910051 T AT 93910051T AT 93910051 T AT93910051 T AT 93910051T AT E176808 T1 ATE176808 T1 AT E176808T1
- Authority
- AT
- Austria
- Prior art keywords
- washer
- pulp
- bleaching
- washing
- chlorine
- Prior art date
Links
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
- D21C9/1026—Other features in bleaching 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
-
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
-
- 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)
- Detergent Compositions (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI930954A FI93232C (sv) | 1993-03-03 | 1993-03-03 | Förfarande för blekning av massa med klorfria kemikalier |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE176808T1 true ATE176808T1 (de) | 1999-03-15 |
Family
ID=8537491
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT98113684T ATE228181T1 (de) | 1993-03-03 | 1993-05-25 | Verfahren zum waschen von zellstoff beim bleichen |
AT93910051T ATE176808T1 (de) | 1993-03-03 | 1993-05-25 | Verfahren zum bleichen von zellstoff mit chlorfreien chemikalien |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT98113684T ATE228181T1 (de) | 1993-03-03 | 1993-05-25 | Verfahren zum waschen von zellstoff beim bleichen |
Country Status (13)
Country | Link |
---|---|
EP (2) | EP0884415B1 (sv) |
JP (1) | JP3276083B2 (sv) |
AT (2) | ATE228181T1 (sv) |
AU (1) | AU5370594A (sv) |
BR (1) | BR9307858A (sv) |
CA (1) | CA2157109C (sv) |
DE (2) | DE69323566T2 (sv) |
ES (2) | ES2130260T3 (sv) |
FI (3) | FI93232C (sv) |
NO (1) | NO953444L (sv) |
PT (1) | PT884415E (sv) |
RU (1) | RU2126471C1 (sv) |
WO (1) | WO1994020673A1 (sv) |
Families Citing this family (15)
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 |
FI103818B (sv) * | 1995-02-21 | 1999-09-30 | Ahlstrom Machinery Oy | Massablekningsförfarande |
US20080110584A1 (en) * | 2006-11-15 | 2008-05-15 | Caifang Yin | Bleaching process with at least one extraction stage |
FR2910027B1 (fr) * | 2006-12-13 | 2009-11-06 | Itt Mfg Enterprises Inc | Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature |
CA2763024C (en) | 2009-05-28 | 2018-04-10 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
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 |
EP2802708B1 (en) | 2012-01-12 | 2020-12-23 | GP Cellulose GmbH | A low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same |
CN104411882B (zh) | 2012-04-18 | 2018-04-20 | Gp纤维素股份有限公司 | 表面活性剂处理纸浆并改善牛皮纸浆向纤维的并入以制造粘胶及其他二次纤维产品的用途 |
BR112015018492A2 (pt) | 2013-02-08 | 2017-07-18 | Gp Cellulose Gmbh | fibra kraft e método para fazer polpa kraft oxidada |
US10138598B2 (en) | 2013-03-14 | 2018-11-27 | Gp Cellulose Gmbh | Method of making a highly functional, low viscosity kraft fiber using an acidic bleaching sequence and a fiber made by the process |
MX357604B (es) | 2013-03-15 | 2018-07-16 | Gp Cellulose Gmbh | Una fibra kraft de baja viscosidad que tiene un contenido de carboxilo mejorado, y metodos para fabricar y usar la misma. |
FR3007044B1 (fr) * | 2013-06-13 | 2016-01-15 | Air Liquide | Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium |
AT515152B1 (de) * | 2013-11-26 | 2015-12-15 | Chemiefaser Lenzing Ag | Verfahren zum Vorbehandeln von rückgewonnenen Baumwollfasern zur Verwendung bei der Herstellung von Formkörpern aus regenerierter Cellulose |
EP3541849B1 (en) | 2016-11-16 | 2023-11-15 | GP Cellulose GmbH | Modified cellulose from chemical fiber and methods of making and using the same |
SE545759C2 (en) * | 2022-06-20 | 2024-01-02 | Valmet Oy | Method for bleaching pulp from recycled textile material |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO144711C (no) * | 1978-04-04 | 1981-10-21 | Myrens Verksted As | Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon |
US4310384A (en) * | 1979-01-11 | 1982-01-12 | Weyerhaeuser Company | Reducing chemical transfer between treatment stages |
FI74752C (sv) * | 1986-03-20 | 1992-12-01 | Ahlstroem Oy | Förfarande och anordning för tvättning av cellulosa |
DK0402335T4 (da) * | 1989-06-06 | 2001-06-25 | Eka Chemicals Ab | Fremgangsmåde til blegning af lignocelluloseholdigpulp |
AU636173B2 (en) * | 1989-10-30 | 1993-04-22 | Lenzing Aktiengesellschaft | Method for the chlorine-free bleaching of pulps |
US5567262A (en) * | 1991-04-16 | 1996-10-22 | Ahlstrom Machinery Inc. | Two stage pressure diffuser |
SE468355B (sv) * | 1991-04-30 | 1992-12-21 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med komplexbildare och ozon |
AT400153B (de) * | 1991-05-02 | 1995-10-25 | Voest Alpine Ind Anlagen | Verfahren zum bleichen von xylan- und lignocellulosehältigen materialien |
-
1993
- 1993-03-03 FI FI930954A patent/FI93232C/sv active
- 1993-05-25 DE DE69323566T patent/DE69323566T2/de not_active Expired - Fee Related
- 1993-05-25 PT PT98113684T patent/PT884415E/pt unknown
- 1993-05-25 EP EP98113684A patent/EP0884415B1/en not_active Expired - Lifetime
- 1993-05-25 WO PCT/FI1993/000222 patent/WO1994020673A1/en active IP Right Grant
- 1993-05-25 DE DE69332508T patent/DE69332508T2/de not_active Expired - Fee Related
- 1993-05-25 JP JP51962394A patent/JP3276083B2/ja not_active Expired - Fee Related
- 1993-05-25 AT AT98113684T patent/ATE228181T1/de not_active IP Right Cessation
- 1993-05-25 AU AU53705/94A patent/AU5370594A/en not_active Abandoned
- 1993-05-25 BR BR9307858A patent/BR9307858A/pt not_active IP Right Cessation
- 1993-05-25 EP EP93910051A patent/EP0687321B1/en not_active Expired - Lifetime
- 1993-05-25 AT AT93910051T patent/ATE176808T1/de not_active IP Right Cessation
- 1993-05-25 ES ES93910051T patent/ES2130260T3/es not_active Expired - Lifetime
- 1993-05-25 CA CA002157109A patent/CA2157109C/en not_active Expired - Fee Related
- 1993-05-25 RU RU95122814A patent/RU2126471C1/ru active
- 1993-05-25 ES ES98113684T patent/ES2186948T3/es not_active Expired - Lifetime
- 1993-09-15 FI FI934036A patent/FI98223B/sv not_active IP Right Cessation
-
1995
- 1995-08-30 FI FI954093A patent/FI954093A/sv not_active IP Right Cessation
- 1995-09-01 NO NO953444A patent/NO953444L/no unknown
Also Published As
Publication number | Publication date |
---|---|
ES2130260T3 (es) | 1999-07-01 |
EP0687321A1 (en) | 1995-12-20 |
EP0884415B1 (en) | 2002-11-20 |
EP0884415A1 (en) | 1998-12-16 |
WO1994020673A1 (en) | 1994-09-15 |
FI930954A0 (sv) | 1993-03-03 |
FI930954A (sv) | 1994-09-04 |
ATE228181T1 (de) | 2002-12-15 |
DE69323566T2 (de) | 1999-07-15 |
FI934036A (sv) | 1994-09-04 |
FI98223B (sv) | 1997-01-31 |
NO953444L (no) | 1995-10-19 |
AU5370594A (en) | 1994-09-26 |
DE69332508D1 (de) | 2003-01-02 |
DE69332508T2 (de) | 2003-07-03 |
ES2186948T3 (es) | 2003-05-16 |
BR9307858A (pt) | 1996-02-27 |
FI954093A0 (sv) | 1995-08-30 |
CA2157109C (en) | 2002-09-03 |
NO953444D0 (no) | 1995-09-01 |
CA2157109A1 (en) | 1994-09-15 |
JPH08509781A (ja) | 1996-10-15 |
JP3276083B2 (ja) | 2002-04-22 |
DE69323566D1 (de) | 1999-03-25 |
FI93232C (sv) | 1995-03-10 |
EP0687321B1 (en) | 1999-02-17 |
FI93232B (sv) | 1994-11-30 |
PT884415E (pt) | 2003-03-31 |
RU2126471C1 (ru) | 1999-02-20 |
FI934036A0 (sv) | 1993-09-15 |
FI954093A (sv) | 1995-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |