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
Authority: BR; Brazil
Prior art keywords: chemical pulp; bleaching process; chemical; pulp bleaching; pulp
Prior art date: 1991-02-12

Application number

BR9205620A

Other languages

English (en)

Inventor

Chung-Li Lee

Robert W Murray

Kenneth Hunt

Original Assignee

Pulp Paper Res Inst

Curators Of The Univeristy Of

Priority date (The priority date 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 date listed.)

1991-02-12

Filing date

1992-02-04

Publication date

1994-05-03

1992-02-04 Application filed by Pulp Paper Res Inst, Curators Of The Univeristy Of filed Critical Pulp Paper Res Inst

1994-05-03 Publication of BR9205620A publication Critical patent/BR9205620A/pt

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)

BR9205620A 1991-02-12 1992-02-04 Polpa quimica, e, processo de branqueamento de polpa quimica. BR9205620A (pt)

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)

* Cited by examiner, † Cited by third party
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
DE69433262T2 (de) *	1993-03-12	2004-05-13	Fmc Corp.	Persulfatmischungen zur aufbereitung von nassfestem papier
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
US6511578B2 (en)	1997-03-21	2003-01-28	Peroxid-Chemie Gmbh & Co. Kg	Bleaching and delignifying cellulosic pulp using caroate/caro's acid solution
WO1998042911A1 (de) *	1997-03-21	1998-10-01	Peroxid-Chemie Gmbh & Co. Kg	Bleichen und delignifizierung von zellstoff durch caroate/carosche säure und herstellung derselben
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)

* Cited by examiner, † Cited by third party
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
EP0515362B1 (en) *	1990-02-16	1994-05-11	Pulp and Paper Research Institute of Canada	Bleaching of lignocellulosic material with dioxiranes

1992
- 1992-02-04 WO PCT/CA1992/000045 patent/WO1992013993A1/en not_active Ceased
- 1992-02-04 BR BR9205620A patent/BR9205620A/pt not_active Application Discontinuation
- 1992-02-04 AU AU11972/92A patent/AU653782B2/en not_active Ceased
- 1992-02-04 EP EP92904110A patent/EP0571433B1/en not_active Expired - Lifetime
- 1992-02-04 JP JP4503885A patent/JPH06505057A/ja active Pending
- 1992-02-04 CA CA002100361A patent/CA2100361C/en not_active Expired - Fee Related
- 1992-02-04 DE DE69202149T patent/DE69202149T2/de not_active Expired - Fee Related
- 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
AU1197292A (en)	1992-09-07
AU653782B2 (en)	1994-10-13
DE69202149D1 (de)	1995-05-24
US5366593A (en)	1994-11-22
FI933542A0 (fi)	1993-08-11
EP0571433B1 (en)	1995-04-19
WO1992013993A1 (en)	1992-08-20
JPH06505057A (ja)	1994-06-09
FI933542L (fi)	1993-08-11
CA2100361C (en)	1997-07-22
CA2100361A1 (en)	1992-08-13
EP0571433A1 (en)	1993-12-01
DE69202149T2 (de)	1995-11-09
FI108549B (fi)	2002-02-15

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Legal Events

Date	Code	Title
1995-01-17	EE	Request for examination
1999-02-17	FB36	Technical and formal requirements: requirement - article 36 of industrial property law
2000-02-01	FA8	Dismissal: dismissal - article 36, par. 1 of industrial property law