BR9205620A - Polpa quimica, e, processo de branqueamento de polpa quimica. - Google Patents
Polpa quimica, e, processo de branqueamento de polpa quimica.Info
- Publication number
- BR9205620A BR9205620A BR9205620A BR9205620A BR9205620A BR 9205620 A BR9205620 A BR 9205620A BR 9205620 A BR9205620 A BR 9205620A BR 9205620 A BR9205620 A BR 9205620A BR 9205620 A BR9205620 A BR 9205620A
- Authority
- BR
- Brazil
- Prior art keywords
- chemical pulp
- bleaching process
- chemical
- pulp bleaching
- pulp
- Prior art date
Links
- 229920001131 Pulp (paper) Polymers 0.000 title 2
- -1 and Polymers 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000004076 pulp bleaching Methods 0.000 title 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
- D21C9/1026—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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Compounds Of Unknown Constitution (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65363991A | 1991-02-12 | 1991-02-12 | |
PCT/CA1992/000045 WO1992013993A1 (en) | 1991-02-12 | 1992-02-04 | Bleaching of lignocellulosic material with activated oxygen |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9205620A true BR9205620A (pt) | 1994-05-03 |
Family
ID=24621712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9205620A BR9205620A (pt) | 1991-02-12 | 1992-02-04 | Polpa quimica, e, processo de branqueamento de polpa quimica. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5366593A (pt) |
EP (1) | EP0571433B1 (pt) |
JP (1) | JPH06505057A (pt) |
AU (1) | AU653782B2 (pt) |
BR (1) | BR9205620A (pt) |
CA (1) | CA2100361C (pt) |
DE (1) | DE69202149T2 (pt) |
FI (1) | FI108549B (pt) |
WO (1) | WO1992013993A1 (pt) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1251180B (it) * | 1991-08-28 | 1995-05-04 | Ausimont Spa | Processo per la degradazione della lignina con diossirani |
US5785887A (en) * | 1992-04-17 | 1998-07-28 | Colgate-Palmolive Company | Peroxygen bleach composition |
CA2154778A1 (en) * | 1993-02-01 | 1994-08-18 | Raymond C. Francis | Improved process and composition for delignifying a lignocellulosic material |
JPH08507836A (ja) * | 1993-03-12 | 1996-08-20 | エフ エム シー コーポレーション | 湿潤強力紙のリパルピング用過硫酸塩混合物 |
US5403549A (en) * | 1993-11-04 | 1995-04-04 | Cyclo3 pss Medical Systems, Inc. | Method for sterilization using a fluid chemical biocide |
US5437686A (en) * | 1994-05-18 | 1995-08-01 | Colgate-Palmolive Co. | Peroxygen bleach composition activated by bi and tricyclic diketones |
CA2284520A1 (en) * | 1997-03-21 | 1998-10-01 | Peroxid-Chemie Gmbh & Co. Kg | Bleaching and delignifying cellulose using caroate/caro's acid and production of same |
US6511578B2 (en) | 1997-03-21 | 2003-01-28 | Peroxid-Chemie Gmbh & Co. Kg | Bleaching and delignifying cellulosic pulp using caroate/caro's acid solution |
US6193837B1 (en) | 1997-09-19 | 2001-02-27 | Midwest Research Institute | Preparation of brightness stabilization agent for lignin containing pulp from biomass pyrolysis oils |
US7582594B2 (en) | 2003-10-17 | 2009-09-01 | Applied Research Associates, Inc. | Dioxirane formulations for decontamination |
US8246779B2 (en) * | 2009-09-24 | 2012-08-21 | Noram Engineering And Constructors Ltd. | Maintenance of sulfur concentration in Kraft pulp processes |
FI20105862A0 (fi) * | 2010-08-18 | 2010-08-18 | Bo Akademi University | Menetelmä hekseeniuronihappojen poistamiseksi |
DE102013010950B4 (de) | 2012-06-28 | 2016-09-01 | Hochschule Anhalt | Elektrolysezelle und Verfahren zur elektrolytischen Erzeugung von Chlordioxid |
DE102014014188A1 (de) | 2014-09-24 | 2016-03-24 | Hochschule Anhalt (Fh) | Verfahren zur chemischen Erzeugung von Chlordioxid aus Chloritionen und Ozon |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1368400A (en) * | 1971-08-05 | 1974-09-25 | Procter & Gamble | Bleaching process and compositions therefor |
US4404061A (en) * | 1981-08-17 | 1983-09-13 | International Paper Company | Bleaching of lignocellulosic materials with monopersulfuric acid or its salts |
WO1991012369A1 (en) * | 1990-02-16 | 1991-08-22 | Pulp And Paper Research Institute Of Canada | Bleaching of lignocellulosic material with dioxiranes |
-
1992
- 1992-02-04 DE DE69202149T patent/DE69202149T2/de not_active Expired - Fee Related
- 1992-02-04 AU AU11972/92A patent/AU653782B2/en not_active Ceased
- 1992-02-04 BR BR9205620A patent/BR9205620A/pt not_active Application Discontinuation
- 1992-02-04 EP EP92904110A patent/EP0571433B1/en not_active Expired - Lifetime
- 1992-02-04 CA CA002100361A patent/CA2100361C/en not_active Expired - Fee Related
- 1992-02-04 JP JP4503885A patent/JPH06505057A/ja active Pending
- 1992-02-04 WO PCT/CA1992/000045 patent/WO1992013993A1/en active IP Right Grant
- 1992-08-11 US US07/927,164 patent/US5366593A/en not_active Expired - Fee Related
-
1993
- 1993-08-11 FI FI933542A patent/FI108549B/fi active
Also Published As
Publication number | Publication date |
---|---|
FI933542A0 (fi) | 1993-08-11 |
US5366593A (en) | 1994-11-22 |
WO1992013993A1 (en) | 1992-08-20 |
EP0571433B1 (en) | 1995-04-19 |
DE69202149D1 (de) | 1995-05-24 |
AU653782B2 (en) | 1994-10-13 |
JPH06505057A (ja) | 1994-06-09 |
CA2100361C (en) | 1997-07-22 |
CA2100361A1 (en) | 1992-08-13 |
DE69202149T2 (de) | 1995-11-09 |
AU1197292A (en) | 1992-09-07 |
FI108549B (fi) | 2002-02-15 |
FI933542A (fi) | 1993-08-11 |
EP0571433A1 (en) | 1993-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EE | Request for examination | ||
FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FA8 | Dismissal: dismissal - article 36, par. 1 of industrial property law |