FI934036A - Förfarande för blekning av massa med klorfria kemikalier - Google Patents
Förfarande för blekning av massa med klorfria kemikalier Download PDFInfo
- Publication number
- FI934036A FI934036A FI934036A FI934036A FI934036A FI 934036 A FI934036 A FI 934036A FI 934036 A FI934036 A FI 934036A FI 934036 A FI934036 A FI 934036A FI 934036 A FI934036 A FI 934036A
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- chlorine
- bleached
- bleaching pulp
- cellulose
- 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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI934036A FI98223B (sv) | 1993-03-03 | 1993-09-15 | Förfarande för blekning av massa med klorfria kemikalier |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI930954A FI93232C (sv) | 1993-03-03 | 1993-03-03 | Förfarande för blekning av massa med klorfria kemikalier |
FI930954 | 1993-03-03 | ||
FI934036 | 1993-09-15 | ||
FI934036A FI98223B (sv) | 1993-03-03 | 1993-09-15 | Förfarande för blekning av massa med klorfria kemikalier |
Publications (3)
Publication Number | Publication Date |
---|---|
FI934036A0 FI934036A0 (sv) | 1993-09-15 |
FI934036A true FI934036A (sv) | 1994-09-04 |
FI98223B FI98223B (sv) | 1997-01-31 |
Family
ID=8537491
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI930954A FI93232C (sv) | 1993-03-03 | 1993-03-03 | Förfarande för blekning av massa med klorfria kemikalier |
FI934036A FI98223B (sv) | 1993-03-03 | 1993-09-15 | Förfarande för blekning av massa med klorfria kemikalier |
FI954093A FI954093A (sv) | 1993-03-03 | 1995-08-30 | Förfarande för behandling av en massa med klorfria kemikalier |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI930954A FI93232C (sv) | 1993-03-03 | 1993-03-03 | Förfarande för blekning av massa med klorfria kemikalier |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI954093A FI954093A (sv) | 1993-03-03 | 1995-08-30 | Förfarande för behandling av en massa med klorfria kemikalier |
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) | DE69332508T2 (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 |
US8778136B2 (en) | 2009-05-28 | 2014-07-15 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
KR101918470B1 (ko) | 2011-05-23 | 2018-11-14 | 게페 첼루로제 게엠베하 | 개선된 백색도 및 밝기를 갖는 연재 크래프트 섬유 및 그의 제조 및 사용 방법 |
EP3800290B1 (en) | 2012-01-12 | 2023-11-01 | GP Cellulose GmbH | A low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same |
US9617686B2 (en) | 2012-04-18 | 2017-04-11 | Gp Cellulose Gmbh | 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 |
BR112015018492A2 (pt) | 2013-02-08 | 2017-07-18 | Gp Cellulose Gmbh | fibra kraft e método para fazer polpa kraft oxidada |
BR112015019882A2 (pt) | 2013-03-14 | 2017-07-18 | Gp Cellulose Gmbh | fibra kraft clareada oxidada e métodos para fazer polpa kraft e fibra kraft de madeira macia e para clarear polpa kraft de celulose em sequência de branqueamento de multi-estágios |
CA2901915A1 (en) | 2013-03-15 | 2014-09-18 | Gp Cellulose Gmbh | A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same |
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 |
CA3040734A1 (en) | 2016-11-16 | 2018-05-24 | 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 |
ES2038097T5 (es) * | 1989-06-06 | 2001-05-01 | Eka Chemicals Ab | Procedimiento para blanquear pastas papeleras que contienen lignocelulosa. |
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 EP EP98113684A patent/EP0884415B1/en not_active Expired - Lifetime
- 1993-05-25 DE DE69332508T patent/DE69332508T2/de not_active Expired - Fee Related
- 1993-05-25 ES ES93910051T patent/ES2130260T3/es not_active Expired - Lifetime
- 1993-05-25 EP EP93910051A patent/EP0687321B1/en not_active Expired - Lifetime
- 1993-05-25 RU RU95122814A patent/RU2126471C1/ru active
- 1993-05-25 ES ES98113684T patent/ES2186948T3/es not_active Expired - Lifetime
- 1993-05-25 DE DE69323566T patent/DE69323566T2/de not_active Expired - Fee Related
- 1993-05-25 AU AU53705/94A patent/AU5370594A/en not_active Abandoned
- 1993-05-25 WO PCT/FI1993/000222 patent/WO1994020673A1/en active IP Right Grant
- 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 BR BR9307858A patent/BR9307858A/pt not_active IP Right Cessation
- 1993-05-25 PT PT98113684T patent/PT884415E/pt unknown
- 1993-05-25 CA CA002157109A patent/CA2157109C/en not_active Expired - Fee Related
- 1993-05-25 AT AT93910051T patent/ATE176808T1/de not_active IP Right Cessation
- 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 |
---|---|
NO953444D0 (no) | 1995-09-01 |
EP0884415B1 (en) | 2002-11-20 |
FI954093A0 (sv) | 1995-08-30 |
DE69332508T2 (de) | 2003-07-03 |
FI93232B (sv) | 1994-11-30 |
FI934036A0 (sv) | 1993-09-15 |
PT884415E (pt) | 2003-03-31 |
RU2126471C1 (ru) | 1999-02-20 |
FI930954A0 (sv) | 1993-03-03 |
DE69323566D1 (de) | 1999-03-25 |
FI930954A (sv) | 1994-09-04 |
AU5370594A (en) | 1994-09-26 |
CA2157109A1 (en) | 1994-09-15 |
NO953444L (no) | 1995-10-19 |
ES2130260T3 (es) | 1999-07-01 |
EP0687321B1 (en) | 1999-02-17 |
DE69323566T2 (de) | 1999-07-15 |
ATE176808T1 (de) | 1999-03-15 |
WO1994020673A1 (en) | 1994-09-15 |
ATE228181T1 (de) | 2002-12-15 |
FI98223B (sv) | 1997-01-31 |
ES2186948T3 (es) | 2003-05-16 |
EP0884415A1 (en) | 1998-12-16 |
BR9307858A (pt) | 1996-02-27 |
EP0687321A1 (en) | 1995-12-20 |
JP3276083B2 (ja) | 2002-04-22 |
DE69332508D1 (de) | 2003-01-02 |
CA2157109C (en) | 2002-09-03 |
FI93232C (sv) | 1995-03-10 |
JPH08509781A (ja) | 1996-10-15 |
FI954093A (sv) | 1995-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
GB | Transfer or assigment of application |
Owner name: AHLSTROM MACHINERY OY |
|
MA | Patent expired |