NO172355C - Fremgangsmaate for bleking av masse - Google Patents

Fremgangsmaate for bleking av masse

Info

Publication number
NO172355C
NO172355C NO893716A NO893716A NO172355C NO 172355 C NO172355 C NO 172355C NO 893716 A NO893716 A NO 893716A NO 893716 A NO893716 A NO 893716A NO 172355 C NO172355 C NO 172355C
Authority
NO
Norway
Prior art keywords
bleaching
oxygen
pulp
procedure
enzyme treatment
Prior art date
Application number
NO893716A
Other languages
English (en)
Norwegian (no)
Other versions
NO893716D0 (no
NO172355B (no
NO893716L (no
Inventor
Marja Vaheri
Kari Miikki
Veikko Jokela
Kimmo Ruohoniemi
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=8528357&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO172355(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
Publication of NO893716D0 publication Critical patent/NO893716D0/no
Publication of NO893716L publication Critical patent/NO893716L/no
Publication of NO172355B publication Critical patent/NO172355B/no
Publication of NO172355C publication Critical patent/NO172355C/no

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
    • 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
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Noodles (AREA)
  • Cereal-Derived Products (AREA)
  • Table Devices Or Equipment (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Detergent Compositions (AREA)
NO893716A 1989-05-04 1989-09-18 Fremgangsmaate for bleking av masse NO172355C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI892151A FI86896B (fi) 1989-05-04 1989-05-04 Foerfarande foer blekning av cellulosamassa.

Publications (4)

Publication Number Publication Date
NO893716D0 NO893716D0 (no) 1989-09-18
NO893716L NO893716L (no) 1990-11-05
NO172355B NO172355B (no) 1993-03-29
NO172355C true NO172355C (no) 1993-07-07

Family

ID=8528357

Family Applications (1)

Application Number Title Priority Date Filing Date
NO893716A NO172355C (no) 1989-05-04 1989-09-18 Fremgangsmaate for bleking av masse

Country Status (8)

Country Link
EP (1) EP0395792B1 (fr)
JP (1) JPH02293486A (fr)
AT (1) ATE91518T1 (fr)
CA (1) CA1339593C (fr)
DE (1) DE68907593D1 (fr)
ES (1) ES2045320T3 (fr)
FI (1) FI86896B (fr)
NO (1) NO172355C (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT94984A (pt) * 1989-08-14 1991-04-18 Cultor Oy Processo aperfeicoado para branqueamento de polpa a oxigenio
SE465320B (sv) * 1990-01-10 1991-08-26 Korsnaes Ab Preparat som uppvisar enzymatisk delignifieringsaktivitet, saett att framstaella detsamma och tillaempningar daerav
US5837515A (en) * 1990-05-16 1998-11-17 Alko-Yhtiot Oy Enzyme preparations and methods for their production
JP2859393B2 (ja) * 1990-07-24 1999-02-17 ノボ ノルディスク アクティーゼルスカブ セルラーゼ及びその製造法
DE4129739A1 (de) * 1990-09-11 1992-03-12 Sandoz Ag Chlorfreies bleichen von papierpulpe
JPH04240287A (ja) * 1991-01-21 1992-08-27 Kobe Steel Ltd パルプの漂白方法
FI90670C (sv) * 1991-05-02 1994-03-10 Metsae Serla Oy Behandling av alkalibehandlad massa för användning i pappersframställning
FI108800B (fi) * 1991-05-07 2002-03-28 Iogen Corp Menetelmä ja laitteisto entsyymin käyttämiseksi paperimassan valmistuksessa ja valkaisussa
US5785811A (en) * 1992-11-09 1998-07-28 The Mead Corporation Process for treating lignocellulosic material with soybean peroxidase in the presence of peroxide
US5871730A (en) * 1994-07-29 1999-02-16 Universite De Sherbrooke Thermostable xylanase DNA, protein and methods of use
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
US5935836A (en) * 1994-07-29 1999-08-10 Rohm Enzyme Finland Oy Actinomadura xylanase sequences and methods of use
US6300114B1 (en) 1994-07-29 2001-10-09 Rohm Enzyme Finland Oy Sequences of xylanase and xylanase expression vectors
US6942754B2 (en) 1999-03-23 2005-09-13 Oji Paper Co., Ltd. Process for producing xylooligosaccharide from lignocellulose pulp
CA2301371C (fr) * 1999-03-23 2009-09-01 Oji Paper Co., Ltd. Procede de blanchiment de pate a papier lignocellulosique
US6824646B2 (en) 1999-03-23 2004-11-30 Oji Paper Co., Ltd. Process for oxygen bleaching and enzyme treating lignocellulosic pulp with liquid treatment and recovery
WO2002052100A2 (fr) 2000-12-22 2002-07-04 Iogen Bio-Products Corporation Etapes d'extraction alcaline faisant appel a une xylanase
US9096519B2 (en) 2013-01-10 2015-08-04 California Institute Of Technology Process for the synthesis of ketones from internal alkenes
US9586883B2 (en) 2013-04-19 2017-03-07 California Institute Of Technology Aldehyde-selective wacker-type oxidation of unbiased alkenes
CN111979823A (zh) * 2020-08-07 2020-11-24 齐鲁工业大学 一种硫酸盐木浆短程序ecf漂白工艺x/d-z-p（x/z-d-p）

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468402A (en) * 1977-11-09 1979-06-01 Kogyo Gijutsuin Property modification of biochemical pulp
FI81395B (fi) * 1988-03-14 1990-06-29 Cultor Oy Foerfarande foer blekning av cellulosamassa.
FI90888B (fi) * 1989-02-14 1993-12-31 Enso Gutzeit Oy Menetelmä selluloosamassan valkaisemiseksi

Also Published As

Publication number Publication date
NO893716D0 (no) 1989-09-18
EP0395792A3 (fr) 1991-01-16
ATE91518T1 (de) 1993-07-15
JPH02293486A (ja) 1990-12-04
FI892151A (fi) 1990-11-05
NO172355B (no) 1993-03-29
EP0395792B1 (fr) 1993-07-14
NO893716L (no) 1990-11-05
FI892151A0 (fi) 1989-05-04
EP0395792A2 (fr) 1990-11-07
ES2045320T3 (es) 1994-01-16
FI86896B (fi) 1992-07-15
DE68907593D1 (de) 1993-08-19
CA1339593C (fr) 1997-12-23

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Legal Events

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