SE8800673L - Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin - Google Patents

Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin

Info

Publication number
SE8800673L
SE8800673L SE8800673A SE8800673A SE8800673L SE 8800673 L SE8800673 L SE 8800673L SE 8800673 A SE8800673 A SE 8800673A SE 8800673 A SE8800673 A SE 8800673A SE 8800673 L SE8800673 L SE 8800673L
Authority
SE
Sweden
Prior art keywords
catalyst
resembling
lignin
molecular
pulp bleaching
Prior art date
Application number
SE8800673A
Other languages
Swedish (sv)
Other versions
SE8800673D0 (en
Inventor
K-E Eriksson
B Pettersson
J-J Yang
Original Assignee
Svenska Traeforskningsinst
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 Svenska Traeforskningsinst filed Critical Svenska Traeforskningsinst
Priority to SE8800673A priority Critical patent/SE8800673L/en
Publication of SE8800673D0 publication Critical patent/SE8800673D0/en
Publication of SE8800673L publication Critical patent/SE8800673L/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
    • D21C9/1026—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
    • D21C9/16—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)

Abstract

A new method of pulp bleaching in which a low molecular weight catalyst, which mimics the action of ligninase, is used in conjunction with peroxide, an organic solvent and a fatty acid or its salt. Pref. the catalyst is partic. an enzyme of peroxidase type, and may have a porphyrin structure and is partic. a heamoprotein e.g. haemoglobin. The peroxide is added at up to 1% on pulp weight. The fatty acid is partic. halogenated. The organic solvent is present at 0-99% of water quant.
SE8800673A 1988-02-26 1988-02-26 Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin SE8800673L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8800673A SE8800673L (en) 1988-02-26 1988-02-26 Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8800673A SE8800673L (en) 1988-02-26 1988-02-26 Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin

Publications (2)

Publication Number Publication Date
SE8800673D0 SE8800673D0 (en) 1988-02-26
SE8800673L true SE8800673L (en) 1989-08-27

Family

ID=20371503

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800673A SE8800673L (en) 1988-02-26 1988-02-26 Paper pulp bleaching process - employs low-molecular wt. catalyst resembling enzyme reaction with lignin

Country Status (1)

Country Link
SE (1) SE8800673L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1043913C (en) * 1993-06-16 1999-06-30 里格诺金姆有限公司 Process for modifying breaking down or bleaching lignin, materials containing lignin or like substances

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1043913C (en) * 1993-06-16 1999-06-30 里格诺金姆有限公司 Process for modifying breaking down or bleaching lignin, materials containing lignin or like substances

Also Published As

Publication number Publication date
SE8800673D0 (en) 1988-02-26

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