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AU5657098A - Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions - Google Patents

Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions

Info

Publication number
AU5657098A
AU5657098A AU56570/98A AU5657098A AU5657098A AU 5657098 A AU5657098 A AU 5657098A AU 56570/98 A AU56570/98 A AU 56570/98A AU 5657098 A AU5657098 A AU 5657098A AU 5657098 A AU5657098 A AU 5657098A
Authority
AU
Australia
Prior art keywords
pulp
dispersions
bleaching process
chemical
chemical pulp
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
AU56570/98A
Inventor
Philippe Willems
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.)
Tate and Lyle Europe NV
Original Assignee
Tate and Lyle Europe NV
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 Tate and Lyle Europe NV filed Critical Tate and Lyle Europe NV
Publication of AU5657098A publication Critical patent/AU5657098A/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
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU56570/98A 1997-11-25 1997-11-25 Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions Abandoned AU5657098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1997/006696 WO1999027178A1 (en) 1997-11-25 1997-11-25 Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions

Publications (1)

Publication Number Publication Date
AU5657098A true AU5657098A (en) 1999-06-15

Family

ID=8166803

Family Applications (1)

Application Number Title Priority Date Filing Date
AU56570/98A Abandoned AU5657098A (en) 1997-11-25 1997-11-25 Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions

Country Status (4)

Country Link
EP (1) EP1036237A1 (en)
AU (1) AU5657098A (en)
CA (1) CA2310278A1 (en)
WO (1) WO1999027178A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6702921B2 (en) * 2001-05-01 2004-03-09 Ondeo Nalco Company Methods to enhance pulp bleaching and delignification using an organic sulfide chelating agent
EP1811080A1 (en) * 2006-01-24 2007-07-25 Solvay SA Process for the bleaching of mechanical paper pulp
GB0721587D0 (en) 2007-11-02 2007-12-12 Innospec Ltd Process for bleaching pulp
CN115678439B (en) * 2022-10-31 2024-04-23 上海应用技术大学 Alkaline polishing solution for inhibiting copper-cobalt galvanic corrosion and preparation method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2038097T5 (en) * 1989-06-06 2001-05-01 Eka Chemicals Ab PROCEDURE FOR WHITENING PAPER PASTES CONTAINING LIGNOCELLULOSE.
WO1994028464A1 (en) * 1993-05-20 1994-12-08 The Dow Chemical Company Succinic acid derivative degradable chelants, uses and compositions thereof
SE9501623L (en) * 1995-05-02 1996-11-03 Sunds Defibrator Ind Ab Bleaching of pulp
SE9503004L (en) * 1995-08-30 1997-03-01 Sunds Defibrator Ind Ab Bleaching of pulp
FI115469B (en) * 1996-02-19 2005-05-13 Kemira Oyj Process for the treatment of chemical cellulose material

Also Published As

Publication number Publication date
WO1999027178A1 (en) 1999-06-03
EP1036237A1 (en) 2000-09-20
CA2310278A1 (en) 1999-06-03

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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