FI920832A7 - Method for bleaching pulp in aliphatic monocarboxylic acids - Google Patents

Method for bleaching pulp in aliphatic monocarboxylic acids Download PDF

Info

Publication number: FI920832A7
Authority: FI; Finland
Prior art keywords: monocarboxylic acids; aliphatic monocarboxylic; bleaching pulp; bleaching; pulp
Prior art date: 1991-03-08

Application number

FI920832A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI920832A0 (en

FI920832L (en

Inventor

Alex Berg

Stefan Balle

Wim Janssen

Rudolf Gustav Kunz

Wolfdieter Klein

Original Assignee

Acetocell Gmbh & Co Kg

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.)

1991-03-08

Filing date

1992-02-25

Publication date

1992-09-09

1992-02-25 Application filed by Acetocell Gmbh & Co Kg filed Critical Acetocell Gmbh & Co Kg

1992-02-25 Publication of FI920832A0 publication Critical patent/FI920832A0/en

1992-09-09 Publication of FI920832L publication Critical patent/FI920832L/en

1992-09-09 Publication of FI920832A7 publication Critical patent/FI920832A7/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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/003—Pulping cellulose-containing materials with organic 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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

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)
Polysaccharides And Polysaccharide Derivatives (AREA)
Agricultural Chemicals And Associated Chemicals (AREA)
External Artificial Organs (AREA)

FI920832A 1991-03-08 1992-02-25 Method for bleaching pulp in aliphatic monocarboxylic acids FI920832A7 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE4107356A DE4107356C1 (en)	1991-03-08	1991-03-08

Publications (3)

Publication Number	Publication Date
FI920832A0 FI920832A0 (en)	1992-02-25
FI920832L FI920832L (en)	1992-09-09
FI920832A7 true FI920832A7 (en)	1992-09-09

Family

ID=6426710

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI920832A FI920832A7 (en)	1991-03-08	1992-02-25	Method for bleaching pulp in aliphatic monocarboxylic acids

Country Status (6)

Country	Link
EP (1)	EP0503303B1 (en)
AT (1)	ATE131886T1 (en)
CA (1)	CA2062325A1 (en)
DE (2)	DE4107356C1 (en)
FI (1)	FI920832A7 (en)
NO (1)	NO920829L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2391011A (en) *	2002-07-19	2004-01-28	Crosmill Ltd	Bleaching cellulose suspensions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2183643A (en) *	1936-05-05	1939-12-19		Manufacture of cellulose
GB579669A (en) *	1943-11-05	1946-08-12	Stanley Charles Bate	Improvements in or relating to the production of cellulose
US3553076A (en) *	1968-01-22	1971-01-05	Weyerhaeuser Co	Non-catalytic process for the production of cellulose from lignocellulosic materials using acetic acid
DE3118384C1 (en) *	1981-05-09	1982-11-11	Mannesmann AG, 4000 Düsseldorf	Process for bleaching chemically produced pulp with ozone
DE3445132A1 (en) *	1984-12-11	1986-06-12	Nimz, Horst H., Prof.Dr., 2050 Hamburg	Wood pulping with acetic acid
EP0325891A1 (en) *	1988-01-25	1989-08-02	Kunz Holding Gmbh & Co. Kg	Process for obtaining bleached cellulose pulp

1991
- 1991-03-08 DE DE4107356A patent/DE4107356C1/de not_active Expired - Lifetime
1992
- 1992-02-14 AT AT92102469T patent/ATE131886T1/en not_active IP Right Cessation
- 1992-02-14 EP EP92102469A patent/EP0503303B1/en not_active Expired - Lifetime
- 1992-02-14 DE DE59204715T patent/DE59204715D1/en not_active Expired - Fee Related
- 1992-02-25 FI FI920832A patent/FI920832A7/en not_active Application Discontinuation
- 1992-03-03 NO NO92920829A patent/NO920829L/en unknown
- 1992-03-05 CA CA002062325A patent/CA2062325A1/en not_active Abandoned

Also Published As

Publication number	Publication date
FI920832A0 (en)	1992-02-25
DE4107356C1 (en)	1992-11-05
DE59204715D1 (en)	1996-02-01
EP0503303B1 (en)	1995-12-20
CA2062325A1 (en)	1992-09-09
NO920829L (en)	1992-09-09
FI920832L (en)	1992-09-09
ATE131886T1 (en)	1996-01-15
NO920829D0 (en)	1992-03-03
EP0503303A1 (en)	1992-09-16

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Legal Events

Date	Code	Title	Description
1996-09-10	FD	Application lapsed