ES2129142T3 - Procedimiento para el blanqueo de una pasta papelera quimica. - Google Patents
Procedimiento para el blanqueo de una pasta papelera quimica.Info
- Publication number
- ES2129142T3 ES2129142T3 ES94931025T ES94931025T ES2129142T3 ES 2129142 T3 ES2129142 T3 ES 2129142T3 ES 94931025 T ES94931025 T ES 94931025T ES 94931025 T ES94931025 T ES 94931025T ES 2129142 T3 ES2129142 T3 ES 2129142T3
- Authority
- ES
- Spain
- Prior art keywords
- whitening
- procedure
- chemical paper
- paper mill
- pulp
- 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 - Lifetime
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
- D21C9/16—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
- D21C9/1026—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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PROCEDIMIENTO PARA EL BLANQUEO DE UNA PULPA DE PAPEL QUIMICA, QUE HA SIDO SOMETIDA A UNA COCCION EXTENSIVA, MEDIANTE UNA SECUENCIA DE ETAPAS DE TRATAMIENTO EXENTOS DE REACTIVOS CLORADOS QUE CONSISTE EN EFECTUAR, EN EL ORDEN, UNA ETAPA DE DESCONTAMINACION DE LA PULPA DE SUS METALES DE TRANSICION Y UNA ETAPA CON PEROXIDO DE HIDROGENO ALCALINO.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9301251 | 1993-11-10 | ||
BE9301251A BE1007757A3 (fr) | 1993-11-10 | 1993-11-10 | Procede pour le blanchiment d'une pate a papier chimique. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2129142T3 true ES2129142T3 (es) | 1999-06-01 |
ES2129142T5 ES2129142T5 (es) | 2005-04-01 |
Family
ID=3887547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94931025T Expired - Lifetime ES2129142T5 (es) | 1993-11-10 | 1994-10-28 | Procedimiento para el blanqueo de una pasta papelera quimica. |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0728238B2 (es) |
JP (1) | JPH10500178A (es) |
AT (1) | ATE175738T1 (es) |
AU (1) | AU7993994A (es) |
BE (1) | BE1007757A3 (es) |
BR (1) | BR9408027A (es) |
CA (1) | CA2176246A1 (es) |
DE (1) | DE69416000D1 (es) |
ES (1) | ES2129142T5 (es) |
FI (1) | FI961975A (es) |
MA (1) | MA23369A1 (es) |
NO (1) | NO961889D0 (es) |
WO (1) | WO1995013420A1 (es) |
ZA (1) | ZA948563B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4967451B2 (ja) | 2006-05-17 | 2012-07-04 | 三菱瓦斯化学株式会社 | 漂白パルプの製造方法 |
CN101903591A (zh) | 2007-12-20 | 2010-12-01 | 三菱瓦斯化学株式会社 | 漂白纸浆的制造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69004492T3 (de) * | 1989-06-06 | 2001-11-15 | Eka Nobel Ab, Bohus | Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen. |
SE468355B (sv) * | 1991-04-30 | 1992-12-21 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med komplexbildare och ozon |
SE470065C (sv) * | 1991-04-30 | 1996-01-15 | Eka Nobel Ab | Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning |
SE469842C (sv) * | 1992-01-21 | 1996-01-15 | Sunds Defibrator Ind Ab | Blekning av kemisk massa med peroxid |
SE9201477L (sv) * | 1992-05-11 | 1993-06-28 | Kamyr Ab | Saett vid blekning av massa utan anvaendning av klorkemikalier |
BE1006056A3 (fr) * | 1992-07-06 | 1994-05-03 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
NZ258273A (en) * | 1992-11-27 | 1996-08-27 | Eka Nobel Ab | Bleaching lignocellulose pulp using a complexing agent followed by a peracid |
BE1007700A3 (fr) * | 1993-11-04 | 1995-10-03 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
-
1993
- 1993-11-10 BE BE9301251A patent/BE1007757A3/fr not_active IP Right Cessation
-
1994
- 1994-10-28 CA CA002176246A patent/CA2176246A1/fr not_active Abandoned
- 1994-10-28 EP EP94931025A patent/EP0728238B2/fr not_active Expired - Lifetime
- 1994-10-28 AT AT94931025T patent/ATE175738T1/de not_active IP Right Cessation
- 1994-10-28 BR BR9408027A patent/BR9408027A/pt unknown
- 1994-10-28 DE DE69416000T patent/DE69416000D1/de not_active Expired - Lifetime
- 1994-10-28 ES ES94931025T patent/ES2129142T5/es not_active Expired - Lifetime
- 1994-10-28 JP JP7513565A patent/JPH10500178A/ja active Pending
- 1994-10-28 AU AU79939/94A patent/AU7993994A/en not_active Abandoned
- 1994-10-28 WO PCT/EP1994/003590 patent/WO1995013420A1/fr active IP Right Grant
- 1994-10-31 ZA ZA948563A patent/ZA948563B/xx unknown
- 1994-11-09 MA MA23693A patent/MA23369A1/fr unknown
-
1996
- 1996-05-09 FI FI961975A patent/FI961975A/fi unknown
- 1996-05-09 NO NO961889A patent/NO961889D0/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ZA948563B (en) | 1995-06-30 |
EP0728238B1 (fr) | 1999-01-13 |
EP0728238B2 (fr) | 2004-08-11 |
ATE175738T1 (de) | 1999-01-15 |
BE1007757A3 (fr) | 1995-10-17 |
DE69416000D1 (de) | 1999-02-25 |
NO961889L (no) | 1996-05-09 |
EP0728238A1 (fr) | 1996-08-28 |
MA23369A1 (fr) | 1995-07-01 |
ES2129142T5 (es) | 2005-04-01 |
BR9408027A (pt) | 1996-12-17 |
FI961975A0 (fi) | 1996-05-09 |
WO1995013420A1 (fr) | 1995-05-18 |
JPH10500178A (ja) | 1998-01-06 |
AU7993994A (en) | 1995-05-29 |
FI961975A (fi) | 1996-07-09 |
CA2176246A1 (fr) | 1995-05-18 |
NO961889D0 (no) | 1996-05-09 |
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---|---|---|
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Grant refused |
Effective date: 19970606 |
|
FG2A | Definitive protection |
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