FI935422A7 - Method for bleaching and delignifying chemical paper pulps and use of the method for bleaching and delignifying kraft pulps and ASAM pulps - Google Patents

Method for bleaching and delignifying chemical paper pulps and use of the method for bleaching and delignifying kraft pulps and ASAM pulps Download PDF

Info

Publication number: FI935422A7
Authority: FI; Finland
Prior art keywords: pulps; bleaching; delignifying; asam; kraft
Prior art date: 1991-06-06

Application number

FI935422A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI935422L (en

FI935422A0 (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

1994-01-11

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

1993-12-03 Publication of FI935422A0 publication Critical patent/FI935422A0/en

1994-01-11 Publication of FI935422L publication Critical patent/FI935422L/en

1994-01-11 Publication of FI935422A7 publication Critical patent/FI935422A7/en

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)

FI935422A 1991-06-06 1992-06-01 Method for bleaching and delignifying chemical paper pulps and use of the method for bleaching and delignifying kraft pulps and ASAM pulps FI935422A7 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
BE9100549A BE1004974A3 (en)	1991-06-06	1991-06-06	Method for laundering and pasta delignification paper chemicals and application this method of laundering and the delignification of kraft pulp and pulp asam.
PCT/EP1992/001222 WO1992021814A1 (en)	1991-06-06	1992-06-01	Process for bleaching and delignifying chemical paper pulp

Publications (3)

Publication Number	Publication Date
FI935422A0 FI935422A0 (en)	1993-12-03
FI935422L FI935422L (en)	1994-01-11
FI935422A7 true FI935422A7 (en)	1994-01-11

Family

ID=3885547

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI935422A FI935422A7 (en)	1991-06-06	1992-06-01	Method for bleaching and delignifying chemical paper pulps and use of the method for bleaching and delignifying kraft pulps and ASAM pulps

Country Status (16)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE1006881A3 (en) *	1993-03-02	1995-01-17	Solvay Interox	Method for delignification of chemical pulp.
SE506480C2 (en) *	1995-06-29	1997-12-22	Sca Graphic Res Ab	Bleaching of lignocellulosic fibrous material with ozone and peracid in a combination step
US5770011A (en) *	1995-11-17	1998-06-23	International Paper Company	Neutral monoperoxysulfate bleaching process
FI964715L (en) *	1996-11-26	1998-05-27	Keskuslaboratorio	Method for bleaching cellulose pulp
EP0931874A1 (en) *	1998-01-22	1999-07-28	Degussa-Hüls Aktiengesellschaft	Pulp bleaching process including final stage treatment step with salt of peroxymonosulfuric acid

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

Also Published As

Publication number	Publication date
BE1004974A3 (en)	1993-03-09
FI935422L (en)	1994-01-11
NO934406D0 (en)	1993-12-03
WO1992021814A1 (en)	1992-12-10
NO934406L (en)	1994-01-26
DE69204457T2 (en)	1996-04-18
JPH06507683A (en)	1994-09-01
EP0587822A1 (en)	1994-03-23
EP0587822B1 (en)	1995-08-30
AU1877592A (en)	1993-01-08
YU48264B (en)	1997-09-30
BR9206112A (en)	1995-10-10
NO302129B1 (en)	1998-01-26
ZA924021B (en)	1993-02-24
AU651462B2 (en)	1994-07-21
NZ242996A (en)	1995-01-27
ATE127179T1 (en)	1995-09-15
AR247257A1 (en)	1994-11-30
YU58792A (en)	1994-09-09
FI935422A0 (en)	1993-12-03
CA2110698A1 (en)	1992-12-10
DE69204457D1 (en)	1995-10-05
ES2079209T3 (en)	1996-01-01

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