ZA941468B - Process for the delignification of a chemical paper pulp - Google Patents

Process for the delignification of a chemical paper pulp

Info

Publication number
ZA941468B
ZA941468B ZA941468A ZA941468A ZA941468B ZA 941468 B ZA941468 B ZA 941468B ZA 941468 A ZA941468 A ZA 941468A ZA 941468 A ZA941468 A ZA 941468A ZA 941468 B ZA941468 B ZA 941468B
Authority
ZA
South Africa
Prior art keywords
delignification
paper pulp
chemical paper
chemical
pulp
Prior art date
Application number
ZA941468A
Inventor
John Devenyns
Nicolas Throughton
Francois Desprez
Original Assignee
Solvay Interox
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 filed Critical Solvay Interox
Publication of ZA941468B publication Critical patent/ZA941468B/en

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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
ZA941468A 1993-03-02 1994-03-02 Process for the delignification of a chemical paper pulp ZA941468B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9300196A BE1006881A3 (en) 1993-03-02 1993-03-02 Method for delignification of chemical pulp.

Publications (1)

Publication Number Publication Date
ZA941468B true ZA941468B (en) 1994-09-27

Family

ID=3886877

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA941468A ZA941468B (en) 1993-03-02 1994-03-02 Process for the delignification of a chemical paper pulp

Country Status (10)

Country Link
EP (1) EP0687322A1 (en)
JP (1) JPH08507332A (en)
AU (1) AU6206094A (en)
BE (1) BE1006881A3 (en)
BR (1) BR9405943A (en)
CA (1) CA2157291A1 (en)
FI (1) FI954113A (en)
NO (1) NO953440L (en)
WO (1) WO1994020674A1 (en)
ZA (1) ZA941468B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8268123B2 (en) * 2006-05-17 2012-09-18 Mitsubishi Gas Chemical Company, Inc. Process for producing bleached pulp

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736934B1 (en) * 1995-02-17 2004-05-18 Andritz Oy Method of pretreating pulp in an acid tower prior to bleaching with peroxide
FI117392B (en) * 1999-03-02 2006-09-29 Kemira Oyj Multi-step bleaching process for bleaching chemical pulp
US6627041B2 (en) 2000-03-06 2003-09-30 Georgia-Pacific Corporation Method of bleaching and providing papermaking fibers with durable curl
US6899790B2 (en) 2000-03-06 2005-05-31 Georgia-Pacific Corporation Method of providing papermaking fibers with durable curl
WO2009081714A1 (en) 2007-12-20 2009-07-02 Mitsubishi Gas Chemical Company, Inc. Process for production of bleached pulp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0364589A (en) * 1989-07-28 1991-03-19 Mitsubishi Gas Chem Co Inc Bleaching of chemical pulp
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making
SE468355B (en) * 1991-04-30 1992-12-21 Eka Nobel Ab CHEMISTRY OF CHEMICAL MASS THROUGH TREATMENT WITH COMPLEX PICTURES AND OZONE
BE1004974A3 (en) * 1991-06-06 1993-03-09 Interox Internat Sa Method for laundering and pasta delignification paper chemicals and application this method of laundering and the delignification of kraft pulp and pulp asam.
BE1006057A3 (en) * 1992-07-06 1994-05-03 Solvay Interox Method for delignification of chemical pulp.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8268123B2 (en) * 2006-05-17 2012-09-18 Mitsubishi Gas Chemical Company, Inc. Process for producing bleached pulp
US8864942B2 (en) 2006-05-17 2014-10-21 Mitsubishi Gas Chemical Company, Inc. Process for producing bleached pulp

Also Published As

Publication number Publication date
CA2157291A1 (en) 1994-09-15
JPH08507332A (en) 1996-08-06
FI954113A (en) 1995-10-04
BR9405943A (en) 1996-02-06
NO953440L (en) 1995-11-01
WO1994020674A1 (en) 1994-09-15
BE1006881A3 (en) 1995-01-17
AU6206094A (en) 1994-09-26
NO953440D0 (en) 1995-09-01
EP0687322A1 (en) 1995-12-20
FI954113A0 (en) 1995-09-01

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