ATE127179T1 - Verfahren zum bleichen und zur delignifizierung von chemischen papierzellstoffen. - Google Patents

Verfahren zum bleichen und zur delignifizierung von chemischen papierzellstoffen.

Info

Publication number: ATE127179T1
Authority: AT; Austria
Prior art keywords: delignification; bleaching; paper pulp; chemical paper; chemical
Prior art date: 1991-06-06

Application number

AT92924472T

Other languages

English (en)

Inventor

Maria Hammann

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.)

1991-06-06

Filing date

1992-06-01

Publication date

1995-09-15

1992-06-01 Application filed by Solvay Interox filed Critical Solvay Interox

1995-09-15 Application granted granted Critical

1995-09-15 Publication of ATE127179T1 publication Critical patent/ATE127179T1/de

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
- D21C9/1057—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
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

AT92924472T 1991-06-06 1992-06-01 Verfahren zum bleichen und zur delignifizierung von chemischen papierzellstoffen. ATE127179T1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BE9100549A BE1004974A3 (fr)	1991-06-06	1991-06-06	Procede pour le blanchiment et la delignification de pates a papier chimiques et application de ce procede au blanchiment et a la delignification des pates kraft et des pates asam.

Publications (1)

Publication Number	Publication Date
ATE127179T1 true ATE127179T1 (de)	1995-09-15

Family

ID=3885547

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT92924472T ATE127179T1 (de)	1991-06-06	1992-06-01	Verfahren zum bleichen und zur delignifizierung von chemischen papierzellstoffen.

Country Status (16)

Country	Link
EP (1)	EP0587822B1 (de)
JP (1)	JPH06507683A (de)
AR (1)	AR247257A1 (de)
AT (1)	ATE127179T1 (de)
AU (1)	AU651462B2 (de)
BE (1)	BE1004974A3 (de)
BR (1)	BR9206112A (de)
CA (1)	CA2110698A1 (de)
DE (1)	DE69204457T2 (de)
ES (1)	ES2079209T3 (de)
FI (1)	FI935422A7 (de)
NO (1)	NO302129B1 (de)
NZ (1)	NZ242996A (de)
WO (1)	WO1992021814A1 (de)
YU (1)	YU48264B (de)
ZA (1)	ZA924021B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE1006881A3 (fr) *	1993-03-02	1995-01-17	Solvay Interox	Procede pour la delignification d'une pate a papier chimique.
SE506480C2 (sv) *	1995-06-29	1997-12-22	Sca Graphic Res Ab	Blekning av lignocellulosahaltigt fibermaterial med ozon och persyra i ett kombinationssteg
US5770011A (en) *	1995-11-17	1998-06-23	International Paper Company	Neutral monoperoxysulfate bleaching process
FI964715L (fi) *	1996-11-26	1998-05-27	Keskuslaboratorio	Menetelmä selluloosamassan valkaisemiseksi
EP0931874A1 (de) *	1998-01-22	1999-07-28	Degussa-Hüls Aktiengesellschaft	Verfahren zum Bleichen von Pulpe umfassend eine Endstufe in welcher die Pulpe mit einem Salz von Peroxymonoschwefelsäure behandelt wird

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4372812A (en) *	1978-04-07	1983-02-08	International Paper Company	Chlorine free process for bleaching lignocellulosic pulp
US5091054A (en) *	1989-08-18	1992-02-25	Degussa Corporation	Process for bleaching and delignification of lignocellulosic

1991
- 1991-06-06 BE BE9100549A patent/BE1004974A3/fr not_active IP Right Cessation
1992
- 1992-06-01 FI FI935422A patent/FI935422A7/fi unknown
- 1992-06-01 AU AU18775/92A patent/AU651462B2/en not_active Ceased
- 1992-06-01 DE DE69204457T patent/DE69204457T2/de not_active Expired - Fee Related
- 1992-06-01 WO PCT/EP1992/001222 patent/WO1992021814A1/fr not_active Ceased
- 1992-06-01 CA CA002110698A patent/CA2110698A1/fr not_active Abandoned
- 1992-06-01 EP EP92924472A patent/EP0587822B1/de not_active Expired - Lifetime
- 1992-06-01 BR BR9206112A patent/BR9206112A/pt not_active Application Discontinuation
- 1992-06-01 JP JP4510141A patent/JPH06507683A/ja active Pending
- 1992-06-01 ES ES92924472T patent/ES2079209T3/es not_active Expired - Fee Related
- 1992-06-01 AT AT92924472T patent/ATE127179T1/de not_active IP Right Cessation
- 1992-06-02 ZA ZA924021A patent/ZA924021B/xx unknown
- 1992-06-02 AR AR92322455A patent/AR247257A1/es active
- 1992-06-03 NZ NZ242996A patent/NZ242996A/xx unknown
- 1992-06-05 YU YU58792A patent/YU48264B/sh unknown
1993
- 1993-12-03 NO NO934406A patent/NO302129B1/no unknown

Also Published As

Publication number	Publication date
BE1004974A3 (fr)	1993-03-09
DE69204457T2 (de)	1996-04-18
NO934406D0 (no)	1993-12-03
AR247257A1 (es)	1994-11-30
FI935422L (fi)	1994-01-11
ES2079209T3 (es)	1996-01-01
EP0587822B1 (de)	1995-08-30
YU58792A (sh)	1994-09-09
WO1992021814A1 (fr)	1992-12-10
JPH06507683A (ja)	1994-09-01
EP0587822A1 (de)	1994-03-23
AU1877592A (en)	1993-01-08
ZA924021B (en)	1993-02-24
AU651462B2 (en)	1994-07-21
NZ242996A (en)	1995-01-27
FI935422A0 (fi)	1993-12-03
CA2110698A1 (fr)	1992-12-10
DE69204457D1 (de)	1995-10-05
NO934406L (no)	1994-01-26
FI935422A7 (fi)	1994-01-11
NO302129B1 (no)	1998-01-26
BR9206112A (pt)	1995-10-10
YU48264B (sh)	1997-09-30

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Legal Events

Date	Code	Title	Description
1996-02-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties