AU4778697A - Method for delignification and bleaching of chemical pulp - Google Patents

Method for delignification and bleaching of chemical pulp

Info

Publication number
AU4778697A
AU4778697A AU47786/97A AU4778697A AU4778697A AU 4778697 A AU4778697 A AU 4778697A AU 47786/97 A AU47786/97 A AU 47786/97A AU 4778697 A AU4778697 A AU 4778697A AU 4778697 A AU4778697 A AU 4778697A
Authority
AU
Australia
Prior art keywords
delignification
bleaching
chemical pulp
pulp
chemical
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
AU47786/97A
Inventor
Eric Chauveheid
Johan Devenyns
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.)
Solvay Chimie SA
Original Assignee
SOLVAY INTEROX
Solvay Interox SA
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 SOLVAY INTEROX, Solvay Interox SA filed Critical SOLVAY INTEROX
Publication of AU4778697A publication Critical patent/AU4778697A/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
    • D21C9/10—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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU47786/97A 1996-10-11 1997-09-25 Method for delignification and bleaching of chemical pulp Abandoned AU4778697A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9600859 1996-10-11
BE9600859A BE1010679A3 (en) 1996-10-11 1996-10-11 Delignification process and laundering pulp chemicals.
PCT/EP1997/005309 WO1998016683A1 (en) 1996-10-11 1997-09-25 Method for delignification and bleaching of chemical pulp

Publications (1)

Publication Number Publication Date
AU4778697A true AU4778697A (en) 1998-05-11

Family

ID=3890027

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47786/97A Abandoned AU4778697A (en) 1996-10-11 1997-09-25 Method for delignification and bleaching of chemical pulp

Country Status (5)

Country Link
AU (1) AU4778697A (en)
BE (1) BE1010679A3 (en)
ID (1) ID18872A (en)
WO (1) WO1998016683A1 (en)
ZA (1) ZA978715B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE470065C (en) * 1991-04-30 1995-10-12 Eka Nobel Ab Treatment of chemical pulp with an acid and then a magnesium and calcium compound in chlorine-free bleaching
WO1994010375A1 (en) * 1992-10-26 1994-05-11 Kamyr, Inc. Displacement chelate treatment of pulp
ATE184060T1 (en) * 1993-04-20 1999-09-15 Eka Chemicals Ab METHOD FOR BLEACHING PULP CONTAINING LIGNOCELLULOSE
EP0858526A1 (en) * 1995-02-17 1998-08-19 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide

Also Published As

Publication number Publication date
ID18872A (en) 1998-05-14
ZA978715B (en) 1999-03-29
WO1998016683A1 (en) 1998-04-23
BE1010679A3 (en) 1998-11-03

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