CA2537033A1 - Methods of treating chemical cellulose pulp - Google Patents

Methods of treating chemical cellulose pulp Download PDF

Info

Publication number
CA2537033A1
CA2537033A1 CA002537033A CA2537033A CA2537033A1 CA 2537033 A1 CA2537033 A1 CA 2537033A1 CA 002537033 A CA002537033 A CA 002537033A CA 2537033 A CA2537033 A CA 2537033A CA 2537033 A1 CA2537033 A1 CA 2537033A1
Authority
CA
Canada
Prior art keywords
pulp
treatment
chlorine dioxide
stage
bleaching
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
CA002537033A
Other languages
English (en)
French (fr)
Inventor
Nam Hee Shin
Pamela J. O'leary
Olavi Pikka
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.)
Andritz Inc
Original Assignee
Andritz Inc
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 Andritz Inc filed Critical Andritz Inc
Publication of CA2537033A1 publication Critical patent/CA2537033A1/en
Abandoned legal-status Critical Current

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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA002537033A 2005-03-08 2006-02-21 Methods of treating chemical cellulose pulp Abandoned CA2537033A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US65907705P 2005-03-08 2005-03-08
US60/659,077 2005-03-08
US11/339,853 2006-01-26
US11/339,853 US20060201642A1 (en) 2005-03-08 2006-01-26 Methods of treating chemical cellulose pulp

Publications (1)

Publication Number Publication Date
CA2537033A1 true CA2537033A1 (en) 2006-09-08

Family

ID=36968837

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002537033A Abandoned CA2537033A1 (en) 2005-03-08 2006-02-21 Methods of treating chemical cellulose pulp

Country Status (7)

Country Link
US (1) US20060201642A1 (fi)
JP (1) JP4976707B2 (fi)
CN (1) CN1896378B (fi)
BR (1) BRPI0600771A (fi)
CA (1) CA2537033A1 (fi)
FI (1) FI20060226A (fi)
SE (1) SE531227C2 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10597820B2 (en) * 2015-05-14 2020-03-24 DuPont Nutrition USA, Inc. Method of making bleached microcrystalline cellulose

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122626B (fi) * 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
ES2403371T3 (es) * 2006-10-11 2013-05-17 Akzo Nobel N.V. Blanqueo de pasta papelera
US8920603B2 (en) * 2006-10-11 2014-12-30 Akzo Nobel N.V. Bleaching of pulp
BR102014016692A2 (pt) * 2014-07-04 2016-03-29 Univ Estadual Paulista Julio D processo de branqueamento de celulose e de produção de derivados de celulose
JP6411182B2 (ja) * 2014-11-13 2018-10-24 大王製紙株式会社 汚泥の脱水助剤及び汚泥の脱水方法
HRP20190259A2 (hr) 2019-02-07 2020-08-21 Marinko Mikulić Kontinuirani postupak proizvodnje celulozne pulpe iz travnatih sirovina

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166330A (en) * 1938-09-12 1939-07-18 Mathieson Alkali Works Inc Method of bleaching
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
US5268075A (en) * 1989-10-19 1993-12-07 North Carolina State University High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
JPH06158573A (ja) * 1992-11-18 1994-06-07 Mitsubishi Gas Chem Co Inc 製紙用化学パルプの漂白方法
FI102301B (fi) * 1994-10-13 1998-11-13 Andritz Oy Menetelmä selluloosamassojen käsittelemiseksi
US6776876B1 (en) * 1994-10-13 2004-08-17 Andritz Oy Method of treating cellulosic pulp to remove hexenuronic acid
RU2189412C2 (ru) * 1996-09-11 2002-09-20 Солвей Интерокс (Сосьете Аноним) Способ отбеливания бумажной массы
FI119383B (fi) * 1998-03-06 2008-10-31 Andritz Oy Menetelmä massan käsittelemiseksi
JP2001200486A (ja) * 1999-12-02 2001-07-27 Andritz Ahlstrom Inc 細砕セルロース繊維材のスラリーを処理する方法
CN1100177C (zh) * 2000-07-20 2003-01-29 华南理工大学 硫酸盐木浆高温二氧化氯漂白方法
JP2003253582A (ja) * 2002-03-06 2003-09-10 Nippon Paper Industries Co Ltd パルプの漂白処理方法
JP3915682B2 (ja) * 2002-12-04 2007-05-16 王子製紙株式会社 漂白パルプの製造方法
JP2005226184A (ja) * 2004-02-12 2005-08-25 Nippon Paper Industries Co Ltd パルプの漂白処理方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10597820B2 (en) * 2015-05-14 2020-03-24 DuPont Nutrition USA, Inc. Method of making bleached microcrystalline cellulose

Also Published As

Publication number Publication date
CN1896378A (zh) 2007-01-17
US20060201642A1 (en) 2006-09-14
BRPI0600771A (pt) 2006-11-07
JP2006249650A (ja) 2006-09-21
CN1896378B (zh) 2011-07-20
JP4976707B2 (ja) 2012-07-18
FI20060226A0 (fi) 2006-03-08
SE0600454L (sv) 2006-09-09
FI20060226A (fi) 2006-09-09
SE531227C2 (sv) 2009-01-27

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Legal Events

Date Code Title Description
FZDE Discontinued