AU2919800A - Bleaching of pulp with peracid as final bleaching agent - Google Patents

Bleaching of pulp with peracid as final bleaching agent

Info

Publication number
AU2919800A
AU2919800A AU29198/00A AU2919800A AU2919800A AU 2919800 A AU2919800 A AU 2919800A AU 29198/00 A AU29198/00 A AU 29198/00A AU 2919800 A AU2919800 A AU 2919800A AU 2919800 A AU2919800 A AU 2919800A
Authority
AU
Australia
Prior art keywords
bleaching
peracid
pulp
final
agent
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
AU29198/00A
Inventor
Jukka Jakara
Aarto Paren
Juha Patola
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.)
Kemira Chemicals Oy
Original Assignee
Kemira Chemicals 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=8554015&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2919800(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Publication of AU2919800A publication Critical patent/AU2919800A/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
    • 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
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU29198/00A 1999-03-02 2000-03-02 Bleaching of pulp with peracid as final bleaching agent Abandoned AU2919800A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI990445A FI117392B (en) 1999-03-02 1999-03-02 Multi-step bleaching process for bleaching chemical pulp
FI990445 1999-03-02
PCT/FI2000/000164 WO2000052258A1 (en) 1999-03-02 2000-03-02 Bleaching of pulp with peracid as final bleaching agent

Publications (1)

Publication Number Publication Date
AU2919800A true AU2919800A (en) 2000-09-21

Family

ID=8554015

Family Applications (1)

Application Number Title Priority Date Filing Date
AU29198/00A Abandoned AU2919800A (en) 1999-03-02 2000-03-02 Bleaching of pulp with peracid as final bleaching agent

Country Status (3)

Country Link
AU (1) AU2919800A (en)
FI (1) FI117392B (en)
WO (1) WO2000052258A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI111459B (en) 2001-04-04 2003-07-31 Kemira Chemicals Oy Process for the preparation of stable peracetic acid product
US7914646B2 (en) 2006-07-21 2011-03-29 Nalco Company Compositions and processes for paper production
FI122829B (en) 2010-06-02 2012-07-31 Kemira Oyj Process for preparing a mixture of chelating agents
FI127996B (en) 2016-07-01 2019-07-15 Kemira Oyj A process for treating pulp
WO2019048698A1 (en) * 2017-09-11 2019-03-14 Kemira Oyj Process for treating pulp

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006881A3 (en) * 1993-03-02 1995-01-17 Solvay Interox Method for delignification of chemical pulp.
US5656130A (en) * 1995-04-28 1997-08-12 Union Camp Holding, Inc. Ambient temperature pulp bleaching with peroxyacid salts
FI112958B (en) * 1997-12-19 2004-02-13 Kemira Oyj Method for bleaching chemical pulp and use of bleaching solution
EP0931874A1 (en) * 1998-01-22 1999-07-28 Degussa-Hüls Aktiengesellschaft Pulp bleaching process including final stage treatment step with salt of peroxymonosulfuric acid

Also Published As

Publication number Publication date
WO2000052258A1 (en) 2000-09-08
FI990445A (en) 2000-09-03
FI117392B (en) 2006-09-29
FI990445A0 (en) 1999-03-02

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase
TH Corrigenda

Free format text: IN VOL 14, NO 50, PAGE(S) 9142-9145 UNDER THE HEADING APPLICATIONS LAPSED, REFUSED OR WITHDRAWN PLEASE DELETE ALL REFERENCE TO APPLICATION NO. 28177/00 AND 29198/00

MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase