FI89814C - Foerfarande foer blekning av cellulosamassa - Google Patents

Foerfarande foer blekning av cellulosamassa Download PDF

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Publication number
FI89814C
FI89814C FI900549A FI900549A FI89814C FI 89814 C FI89814 C FI 89814C FI 900549 A FI900549 A FI 900549A FI 900549 A FI900549 A FI 900549A FI 89814 C FI89814 C FI 89814C
Authority
FI
Finland
Prior art keywords
pulp
treatment
enzyme
alkali
bleaching
Prior art date
Application number
FI900549A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI89814B (fi
FI900549A0 (fi
FI900549A (fi
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=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI89814(C) "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
Priority to FI900549A priority Critical patent/FI89814C/fi
Publication of FI900549A0 publication Critical patent/FI900549A0/fi
Priority to PCT/FI1991/000033 priority patent/WO1991011553A1/fr
Priority to AT91903684T priority patent/ATE128498T1/de
Priority to ES91903684T priority patent/ES2079062T5/es
Priority to CA002075187A priority patent/CA2075187A1/fr
Priority to JP3503752A priority patent/JPH05509362A/ja
Priority to EP91903684A priority patent/EP0513140B2/fr
Priority to DE69113444T priority patent/DE69113444D1/de
Publication of FI900549A publication Critical patent/FI900549A/fi
Publication of FI89814B publication Critical patent/FI89814B/fi
Publication of FI89814C publication Critical patent/FI89814C/fi
Application granted granted Critical

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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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
FI900549A 1990-02-02 1990-02-02 Foerfarande foer blekning av cellulosamassa FI89814C (fi)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI900549A FI89814C (fi) 1990-02-02 1990-02-02 Foerfarande foer blekning av cellulosamassa
DE69113444T DE69113444D1 (de) 1990-02-02 1991-02-01 Verfahren zum bleichen von chemischem papierzellstoff.
ES91903684T ES2079062T5 (es) 1990-02-02 1991-02-01 Procedimiento para el blanqueo de pasta papelera quimica.
AT91903684T ATE128498T1 (de) 1990-02-02 1991-02-01 Verfahren zum bleichen von chemischem papierzellstoff.
PCT/FI1991/000033 WO1991011553A1 (fr) 1990-02-02 1991-02-01 Procede de blanchiment de pulpe chimique
CA002075187A CA2075187A1 (fr) 1990-02-02 1991-02-01 Procede de blanchiment d'une pate chimique
JP3503752A JPH05509362A (ja) 1990-02-02 1991-02-01 ケミカルパルプの漂白方法
EP91903684A EP0513140B2 (fr) 1990-02-02 1991-02-01 Procede de blanchiment de pulpe chimique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI900549A FI89814C (fi) 1990-02-02 1990-02-02 Foerfarande foer blekning av cellulosamassa
FI900549 1990-02-02

Publications (4)

Publication Number Publication Date
FI900549A0 FI900549A0 (fi) 1990-02-02
FI900549A FI900549A (fi) 1991-08-03
FI89814B FI89814B (fi) 1993-08-13
FI89814C true FI89814C (fi) 1993-11-25

Family

ID=8529828

Family Applications (1)

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

Country Status (8)

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

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 (fr) 1997-09-26 1999-03-31 Consortium für elektrochemische Industrie GmbH Système à plusieurs constituants pour modifier, dégrader ou blanchir la lignine ou les matières contenant de la lignine ainsi que procédé l'utilisant
WO2000014243A1 (fr) 1998-09-04 2000-03-16 University Of Georgia Research Foundation, Inc. Esterases d'acide phenolique, sequences de codage et procedes
US6602700B1 (en) 1998-09-04 2003-08-05 University Of Georgia Research Foundation, Inc. Phenolic acid esterases, coding sequences and methods
CA2432788C (fr) 2000-12-22 2008-10-07 Iogen Bio-Products Corporation Etapes d'extraction alcaline faisant appel a une xylanase
AU2002229430A1 (en) * 2001-01-18 2002-07-30 Iogen Bio-Products Corporation Use of xylanase in pulp bleaching
US7368036B2 (en) * 2002-03-06 2008-05-06 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
EP1516053B1 (fr) 2002-06-14 2012-10-17 Verenium Corporation Xylanases, acides nucleiques les codant et leurs procedes de fabrication et d'utilisation
EP3406621A1 (fr) 2006-02-14 2018-11-28 BP Corporation North America Inc. Xylanases, acides nucléiques les codant et leurs procédés de fabrication et d'utilisation

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
FI89814B (fi) 1993-08-13
ATE128498T1 (de) 1995-10-15
DE69113444D1 (de) 1995-11-02
FI900549A0 (fi) 1990-02-02
ES2079062T5 (es) 1998-07-16
WO1991011553A1 (fr) 1991-08-08
EP0513140B2 (fr) 1998-03-18
CA2075187A1 (fr) 1991-08-03
EP0513140A1 (fr) 1992-11-19
EP0513140B1 (fr) 1995-09-27
JPH05509362A (ja) 1993-12-22
FI900549A (fi) 1991-08-03
ES2079062T3 (es) 1996-01-01

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: ENSO-GUTZEIT OY

BB Publication of examined application
FG Patent granted

Owner name: ENSO GUTZEIT OY

MA Patent expired