AU5400294A - Method for peroxide bleaching of sulphate pulp - Google Patents

Method for peroxide bleaching of sulphate pulp

Info

Publication number
AU5400294A
AU5400294A AU54002/94A AU5400294A AU5400294A AU 5400294 A AU5400294 A AU 5400294A AU 54002/94 A AU54002/94 A AU 54002/94A AU 5400294 A AU5400294 A AU 5400294A AU 5400294 A AU5400294 A AU 5400294A
Authority
AU
Australia
Prior art keywords
peroxide bleaching
sulphate pulp
sulphate
pulp
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
AU54002/94A
Inventor
Goran Annergren
Maria Lundin
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.)
SCA Wifsta Ostrand AB
Original Assignee
SCA Wifsta Ostrand AB
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 SCA Wifsta Ostrand AB filed Critical SCA Wifsta Ostrand AB
Publication of AU5400294A publication Critical patent/AU5400294A/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the 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
    • D21C9/16—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)
  • Paper (AREA)
AU54002/94A 1992-10-26 1993-10-25 Method for peroxide bleaching of sulphate pulp Abandoned AU5400294A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9203122A SE500353C2 (en) 1992-10-26 1992-10-26 Peroxide bleaching of sulfate pulp with the addition of magnesium before bleaching
SE9203122 1992-10-26
PCT/SE1993/000868 WO1994010374A1 (en) 1992-10-26 1993-10-25 Method for peroxide bleaching of sulphate pulp

Publications (1)

Publication Number Publication Date
AU5400294A true AU5400294A (en) 1994-05-24

Family

ID=20387556

Family Applications (1)

Application Number Title Priority Date Filing Date
AU54002/94A Abandoned AU5400294A (en) 1992-10-26 1993-10-25 Method for peroxide bleaching of sulphate pulp

Country Status (3)

Country Link
AU (1) AU5400294A (en)
SE (1) SE500353C2 (en)
WO (1) WO1994010374A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500616C2 (en) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Bleaching of chemical pulp with peroxide at overpressure
DE4436761A1 (en) * 1994-10-14 1996-04-18 Henkel Kgaa Process for the preparation of light colored alkyl and / or alkenyl oligoglycosides
CA2332304C (en) * 1998-05-15 2005-01-11 National Silicates Partnership Peroxide, oxygen, and peroxide/oxygen brightening of chemical and mixed waste pulps
US6699358B1 (en) 1998-05-15 2004-03-02 National Silicates Partnership Method for brightening chemical pulp with hydrogen peroxide using a magnesium compound in silicate solution
SE0102012L (en) * 2001-06-07 2002-12-08 Metso Paper Inc Washing of pulp
FI20225978A1 (en) * 2022-11-02 2024-05-03 Upm Kymmene Corp Arrangement and method for controlling magnesium sulphate feed

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841013C2 (en) * 1978-09-21 1984-06-07 Degussa Ag, 6000 Frankfurt Process for full bleaching of pulp
SE470065C (en) * 1991-04-30 1996-01-15 Eka Nobel Ab Treatment of chemical pulp with an acid and then a magnesium and calcium compound in chlorine-free bleaching

Also Published As

Publication number Publication date
SE500353C2 (en) 1994-06-06
SE9203122D0 (en) 1992-10-26
SE9203122L (en) 1994-04-27
WO1994010374A1 (en) 1994-05-11

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