ATE128498T1 - Verfahren zum bleichen von chemischem papierzellstoff. - Google Patents

Verfahren zum bleichen von chemischem papierzellstoff.

Info

Publication number
ATE128498T1
ATE128498T1 AT91903684T AT91903684T ATE128498T1 AT E128498 T1 ATE128498 T1 AT E128498T1 AT 91903684 T AT91903684 T AT 91903684T AT 91903684 T AT91903684 T AT 91903684T AT E128498 T1 ATE128498 T1 AT E128498T1
Authority
AT
Austria
Prior art keywords
enzyme
steps
pulp
bleaching
chemical
Prior art date
Application number
AT91903684T
Other languages
English (en)
Inventor
Marja Vaheri
Kimmo Ruohoniemi
Hannu Sonni
Original Assignee
Enso Gutzeit Oy
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8529828&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE128498(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Enso Gutzeit Oy filed Critical Enso Gutzeit Oy
Application granted granted Critical
Publication of ATE128498T1 publication Critical patent/ATE128498T1/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
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
AT91903684T 1990-02-02 1991-02-01 Verfahren zum bleichen von chemischem papierzellstoff. ATE128498T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI900549A FI89814C (fi) 1990-02-02 1990-02-02 Foerfarande foer blekning av cellulosamassa

Publications (1)

Publication Number Publication Date
ATE128498T1 true ATE128498T1 (de) 1995-10-15

Family

ID=8529828

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91903684T ATE128498T1 (de) 1990-02-02 1991-02-01 Verfahren zum bleichen von chemischem papierzellstoff.

Country Status (8)

Country Link
EP (1) EP0513140B2 (de)
JP (1) JPH05509362A (de)
AT (1) ATE128498T1 (de)
CA (1) CA2075187A1 (de)
DE (1) DE69113444D1 (de)
ES (1) ES2079062T5 (de)
FI (1) FI89814C (de)
WO (1) WO1991011553A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90670C (sv) * 1991-05-02 1994-03-10 Metsae Serla Oy Behandling av alkalibehandlad massa för användning i pappersframställning
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
EP0905306A1 (de) 1997-09-26 1999-03-31 Consortium für elektrochemische Industrie GmbH Mehrkomponentensystem zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien sowie Verfahren zu seiner Anwendung
US6602700B1 (en) 1998-09-04 2003-08-05 University Of Georgia Research Foundation, Inc. Phenolic acid esterases, coding sequences and methods
WO2000014243A1 (en) 1998-09-04 2000-03-16 University Of Georgia Research Foundation, Inc. Phenolic acid esterases, coding sequences and methods
WO2002052100A2 (en) 2000-12-22 2002-07-04 Iogen Bio-Products Corporation Alkaline extraction stages comprising xylanase
WO2002057541A2 (en) * 2001-01-18 2002-07-25 Iogen Bio-Products Corporation Use of xylanase in pulp bleaching
WO2003074780A1 (en) * 2002-03-06 2003-09-12 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
DK1516053T3 (da) 2002-06-14 2013-03-25 Verenium Corp Xylanaser, nucleinsyrer, som koder herfor, og fremgangsmåder til at fremstille og benytte disse
EP1989302B1 (de) 2006-02-14 2018-04-11 BP Corporation North America Inc. Xylanasen, dafür kodierende nukleinsäuren sowie verfahren zu deren herstellung und verwendung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90888B (fi) * 1989-02-14 1993-12-31 Enso Gutzeit Oy Menetelmä selluloosamassan valkaisemiseksi
ZA904441B (en) * 1989-06-22 1991-03-27 Int Paper Co Enzymatic delignification of lignocellulosic material

Also Published As

Publication number Publication date
CA2075187A1 (en) 1991-08-03
FI89814C (fi) 1993-11-25
EP0513140A1 (de) 1992-11-19
FI900549A0 (fi) 1990-02-02
EP0513140B2 (de) 1998-03-18
FI89814B (fi) 1993-08-13
EP0513140B1 (de) 1995-09-27
WO1991011553A1 (en) 1991-08-08
ES2079062T3 (es) 1996-01-01
DE69113444D1 (de) 1995-11-02
JPH05509362A (ja) 1993-12-22
FI900549A (fi) 1991-08-03
ES2079062T5 (es) 1998-07-16

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Legal Events

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