AT400153B - METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE - Google Patents

METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE

Info

Publication number: AT400153B
Authority: AT; Austria
Prior art keywords: lignocellulose; materials containing; containing xylan; bleaching materials; bleaching
Prior art date: 1991-05-02

Application number

AT91791A

Other languages

German (de)

Other versions

ATA91791A (en

Inventor

Michael Dr Sinner

Karl Dr Schwarzl

Johann Dipl Ing Kapplmueller

Original Assignee

Voest Alpine Ind Anlagen

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.)

1991-05-02

Filing date

1991-05-02

Publication date

1995-10-25

1991-05-02 Application filed by Voest Alpine Ind Anlagen filed Critical Voest Alpine Ind Anlagen

1991-05-02 Priority to AT91791A priority Critical patent/AT400153B/en

1992-04-28 Priority to EP92890102A priority patent/EP0512978A1/en

1992-04-30 Priority to FI921961A priority patent/FI921961A/en

1992-05-01 Priority to CA 2067880 priority patent/CA2067880A1/en

1995-02-15 Publication of ATA91791A publication Critical patent/ATA91791A/en

1995-10-25 Application granted granted Critical

1995-10-25 Publication of AT400153B publication Critical patent/AT400153B/en

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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
- 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
- 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)
Chemical & Material Sciences (AREA)
Biochemistry (AREA)
Microbiology (AREA)
Paper (AREA)

AT91791A 1991-05-02 1991-05-02 METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE AT400153B (en)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
AT91791A AT400153B (en)	1991-05-02	1991-05-02	METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE
EP92890102A EP0512978A1 (en)	1991-05-02	1992-04-28	Process for bleaching xylan and lignocellulose containing materials
FI921961A FI921961A (en)	1991-05-02	1992-04-30	FOERFARANDE FOER BLEKNING AV XYLAN- OCH LIGNOCELLULOSAHALTIGA MATERIAL
CA 2067880 CA2067880A1 (en)	1991-05-02	1992-05-01	Method of bleaching xylan and lignocellulose-containing materials

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
AT91791A AT400153B (en)	1991-05-02	1991-05-02	METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE

Publications (2)

Publication Number	Publication Date
ATA91791A ATA91791A (en)	1995-02-15
AT400153B true AT400153B (en)	1995-10-25

Family

ID=3502802

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT91791A AT400153B (en)	1991-05-02	1991-05-02	METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE

Country Status (4)

Country	Link
EP (1)	EP0512978A1 (en)
AT (1)	AT400153B (en)
CA (1)	CA2067880A1 (en)
FI (1)	FI921961A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI93232C (en) *	1993-03-03	1995-03-10	Ahlstroem Oy	Method for bleaching pulp with chlorine-free chemicals
US6010594A (en) *	1993-03-03	2000-01-04	Ahlstrom Machinery Corporation	Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage
BE1007272A3 (en) *	1993-07-15	1995-05-09	Solvay	Method of a pulp bleach.
FI935187A (en) *	1993-11-22	1995-05-23	Valtion Teknillinen	Procedure for preparing bleached cellulose pulp
CN109320744B (en) *	2018-09-26	2021-08-13	山东恒联新材料股份有限公司	Regenerated cellulose membrane bleaching process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3636208A1 (en) *	1986-10-24	1988-05-05	Call Hans Peter	METHOD FOR DELIGNIFYING AND WHICH BLEACHING LIGNICELLULOSE-CONTAINING OR LIGNINAL MATERIAL OR LIGNIN BY ENZYMATIC TREATMENT
EP0373107A2 (en) *	1988-11-23	1990-06-13	Sandoz Ag	Use of enzymes of Aureobasidium pullulans in pulp bleaching
EP0386888A2 (en) *	1989-02-10	1990-09-12	ICI Canada Inc.	Oxygen delignification and enzyme treatment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NO144711C (en) *	1978-04-04	1981-10-21	Myrens Verksted As	PROCEDURE FOR BLACKING OXYGEN-EQUIVALIZED CELLULOSE-containing OZONE
NZ235679A (en) *	1989-10-18	1993-01-27	Int Paper Co	Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages

1991
- 1991-05-02 AT AT91791A patent/AT400153B/en not_active IP Right Cessation
1992
- 1992-04-28 EP EP92890102A patent/EP0512978A1/en not_active Withdrawn
- 1992-04-30 FI FI921961A patent/FI921961A/en not_active Application Discontinuation
- 1992-05-01 CA CA 2067880 patent/CA2067880A1/en not_active Abandoned

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3636208A1 (en) *	1986-10-24	1988-05-05	Call Hans Peter	METHOD FOR DELIGNIFYING AND WHICH BLEACHING LIGNICELLULOSE-CONTAINING OR LIGNINAL MATERIAL OR LIGNIN BY ENZYMATIC TREATMENT
EP0373107A2 (en) *	1988-11-23	1990-06-13	Sandoz Ag	Use of enzymes of Aureobasidium pullulans in pulp bleaching
EP0386888A2 (en) *	1989-02-10	1990-09-12	ICI Canada Inc.	Oxygen delignification and enzyme treatment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS 92, 165 513G *

Also Published As

Publication number	Publication date
EP0512978A1 (en)	1992-11-11
CA2067880A1 (en)	1992-11-03
FI921961A (en)	1992-11-03
FI921961A0 (en)	1992-04-30
ATA91791A (en)	1995-02-15

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Legal Events

Date	Code	Title	Description
1994-01-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties
2001-10-15	ELJ	Ceased due to non-payment of the annual fee