BR9408027A - Processo para o branqueamento de uma pasta de papel quimica - Google Patents

Processo para o branqueamento de uma pasta de papel quimica

Info

Publication number: BR9408027A
Authority: BR; Brazil
Prior art keywords: bleaching; chemical pulp; pulp; decontamination; involving
Prior art date: 1993-11-10

Application number

BR9408027A

Other languages

English (en)

Inventor

Francois Desprez

Johan Devenyns

Nicholas A Troughton

Original Assignee

Solvay Interox

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.)

1993-11-10

Filing date

1994-10-28

Publication date

1996-12-17

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3887547&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9408027(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-10-28 Application filed by Solvay Interox filed Critical Solvay Interox

1996-12-17 Publication of BR9408027A publication Critical patent/BR9408027A/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
- 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)

BR9408027A 1993-11-10 1994-10-28 Processo para o branqueamento de uma pasta de papel quimica BR9408027A (pt)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
BE9301251A BE1007757A3 (fr)	1993-11-10	1993-11-10	Procede pour le blanchiment d'une pate a papier chimique.
PCT/EP1994/003590 WO1995013420A1 (fr)	1993-11-10	1994-10-28	Procede pour le blanchiment d'une pate a papier chimique

Publications (1)

Publication Number	Publication Date
BR9408027A true BR9408027A (pt)	1996-12-17

Family

ID=3887547

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR9408027A BR9408027A (pt)	1993-11-10	1994-10-28	Processo para o branqueamento de uma pasta de papel quimica

Country Status (14)

Country	Link
EP (1)	EP0728238B2 (pt)
JP (1)	JPH10500178A (pt)
AT (1)	ATE175738T1 (pt)
AU (1)	AU7993994A (pt)
BE (1)	BE1007757A3 (pt)
BR (1)	BR9408027A (pt)
CA (1)	CA2176246A1 (pt)
DE (1)	DE69416000D1 (pt)
ES (1)	ES2129142T5 (pt)
FI (1)	FI961975A (pt)
MA (1)	MA23369A1 (pt)
NO (1)	NO961889D0 (pt)
WO (1)	WO1995013420A1 (pt)
ZA (1)	ZA948563B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DK0402335T4 (da) *	1989-06-06	2001-06-25	Eka Chemicals Ab	Fremgangsmåde til blegning af lignocelluloseholdigpulp
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
SE469387B (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.
ES2091121T3 (es) *	1992-11-27	1996-10-16	Eka Chemicals Ab	Procedimiento para blanquear pasta que contiene lignocelulosa.
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 AT AT94931025T patent/ATE175738T1/de not_active IP Right Cessation
- 1994-10-28 AU AU79939/94A patent/AU7993994A/en not_active Abandoned
- 1994-10-28 BR BR9408027A patent/BR9408027A/pt unknown
- 1994-10-28 JP JP7513565A patent/JPH10500178A/ja active Pending
- 1994-10-28 EP EP94931025A patent/EP0728238B2/fr not_active Expired - Lifetime
- 1994-10-28 ES ES94931025T patent/ES2129142T5/es not_active Expired - Lifetime
- 1994-10-28 CA CA002176246A patent/CA2176246A1/fr not_active Abandoned
- 1994-10-28 WO PCT/EP1994/003590 patent/WO1995013420A1/fr active IP Right Grant
- 1994-10-28 DE DE69416000T patent/DE69416000D1/de not_active Expired - Lifetime
- 1994-10-31 ZA ZA948563A patent/ZA948563B/xx unknown
- 1994-11-09 MA MA23693A patent/MA23369A1/fr unknown
1996
- 1996-05-09 NO NO961889A patent/NO961889D0/no not_active Application Discontinuation
- 1996-05-09 FI FI961975A patent/FI961975A/fi unknown

Also Published As

Publication number	Publication date
JPH10500178A (ja)	1998-01-06
FI961975A0 (fi)	1996-05-09
FI961975A (fi)	1996-07-09
EP0728238A1 (fr)	1996-08-28
EP0728238B2 (fr)	2004-08-11
MA23369A1 (fr)	1995-07-01
DE69416000D1 (de)	1999-02-25
ES2129142T3 (es)	1999-06-01
AU7993994A (en)	1995-05-29
NO961889L (no)	1996-05-09
ZA948563B (en)	1995-06-30
EP0728238B1 (fr)	1999-01-13
WO1995013420A1 (fr)	1995-05-18
NO961889D0 (no)	1996-05-09
ATE175738T1 (de)	1999-01-15
BE1007757A3 (fr)	1995-10-17
ES2129142T5 (es)	2005-04-01
CA2176246A1 (fr)	1995-05-18

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Legal Events

Date	Code	Title	Description
2002-04-09	EG	Technical examination (opinion): publication of technical examination (opinion)