CA2050986A1 - Chlorine-free process for bleaching pulp - Google Patents

Chlorine-free process for bleaching pulp

Info

Publication number
CA2050986A1
CA2050986A1 CA002050986A CA2050986A CA2050986A1 CA 2050986 A1 CA2050986 A1 CA 2050986A1 CA 002050986 A CA002050986 A CA 002050986A CA 2050986 A CA2050986 A CA 2050986A CA 2050986 A1 CA2050986 A1 CA 2050986A1
Authority
CA
Canada
Prior art keywords
pulp
process according
oxygen
chlorine
chlorine dioxide
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002050986A
Other languages
English (en)
French (fr)
Inventor
Roberta L. Farrell
Paul S. Skerker
Hou-Min Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANG HOU MIN
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of CA2050986A1 publication Critical patent/CA2050986A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005Treatment of cellulose-containing material with microorganisms or enzymes
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/12Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
CA002050986A 1990-09-11 1991-09-09 Chlorine-free process for bleaching pulp Abandoned CA2050986A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58074390A 1990-09-11 1990-09-11
US580,743 1990-09-11

Publications (1)

Publication Number Publication Date
CA2050986A1 true CA2050986A1 (en) 1992-03-12

Family

ID=24322372

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002050986A Abandoned CA2050986A1 (en) 1990-09-11 1991-09-09 Chlorine-free process for bleaching pulp

Country Status (7)

Country Link
JP (1) JPH04245988A (it)
CA (1) CA2050986A1 (it)
DE (1) DE4129739A1 (it)
FR (1) FR2666597B1 (it)
GB (1) GB2248075B (it)
IT (1) IT1249694B (it)
SE (1) SE9102589L (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06116889A (ja) * 1992-09-30 1994-04-26 New Oji Paper Co Ltd 木材化学パルプの漂白法
JP3262646B2 (ja) * 1993-07-09 2002-03-04 日本製紙株式会社 パルプの漂白方法
JPH0734396A (ja) * 1993-07-15 1995-02-03 Nippon Paper Ind Co Ltd 積層板用原紙
JP3244887B2 (ja) * 1993-10-21 2002-01-07 三菱製紙株式会社 食品容器用の紙
FI935187A (fi) * 1993-11-22 1995-05-23 Valtion Teknillinen Menetelmä valkaistun selluloosamassan valmistamiseksi
JP3610686B2 (ja) * 1996-07-31 2005-01-19 王子製紙株式会社 印刷用塗被紙の製造方法
EP1325961A1 (en) * 1997-06-10 2003-07-09 Danisco Sweeteners Oy A process for the production of crystalline xylose
US7541175B1 (en) 2000-12-22 2009-06-02 Iogen Energy Corporation Alkaline extraction stages comprising xylanase
AU2002229430A1 (en) 2001-01-18 2002-07-30 Iogen Bio-Products Corporation Use of xylanase in pulp bleaching
CA2436765A1 (en) * 2001-12-03 2003-06-12 Iogen Bio-Products Corporation Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof
CA2477847A1 (en) 2002-03-06 2003-09-12 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
WO2009138090A2 (en) * 2008-05-14 2009-11-19 Rådet For Agroindustri A process for the production of hydrolysed plant material
PT2655732E (pt) 2010-12-22 2015-02-09 Akzo Nobel Chemicals Int Bv Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel
CN102182094B (zh) * 2011-04-12 2012-03-14 山东轻工业学院 一种沙柳硫酸盐浆漂白工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095239B1 (en) * 1982-04-30 1986-07-09 Imperial Chemical Industries Plc Delignification of lignocellulosic material
FI81395B (fi) * 1988-03-14 1990-06-29 Cultor Oy Foerfarande foer blekning av cellulosamassa.
CA2003503A1 (en) * 1988-11-23 1990-05-23 Roberta Lee Farrell Use of aureobasidium pullulans in pulp bleaching
US5179021A (en) * 1989-02-10 1993-01-12 Gil Inc. (Now Ici Canada Inc.) Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
FI90888B (fi) * 1989-02-14 1993-12-31 Enso Gutzeit Oy Menetelmä selluloosamassan valkaisemiseksi
FI86896B (fi) * 1989-05-04 1992-07-15 Enso Gutzeit Oy Foerfarande foer blekning av cellulosamassa.
DK420289D0 (da) * 1989-08-25 1989-08-25 Novo Nordisk As Fremgangsmaade til behandling af lignocellulosepulp
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

Also Published As

Publication number Publication date
FR2666597B1 (fr) 1996-10-31
JPH04245988A (ja) 1992-09-02
ITRM910670A0 (it) 1991-09-10
ITRM910670A1 (it) 1993-03-10
SE9102589L (sv) 1992-03-12
GB9119218D0 (en) 1991-10-23
IT1249694B (it) 1995-03-09
DE4129739A1 (de) 1992-03-12
GB2248075A (en) 1992-03-25
SE9102589D0 (sv) 1991-09-09
GB2248075B (en) 1994-06-29
FR2666597A1 (fr) 1992-03-13

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued