SE9502511L - Förfarande vid massblekning - Google Patents

Förfarande vid massblekning

Info

Publication number
SE9502511L
SE9502511L SE9502511A SE9502511A SE9502511L SE 9502511 L SE9502511 L SE 9502511L SE 9502511 A SE9502511 A SE 9502511A SE 9502511 A SE9502511 A SE 9502511A SE 9502511 L SE9502511 L SE 9502511L
Authority
SE
Sweden
Prior art keywords
bleaching process
mass
mass bleaching
bleaching
Prior art date
Application number
SE9502511A
Other languages
English (en)
Other versions
SE9502511D0 (sv
Inventor
Petter Tibbling
Ulla Ekstroem
Erik Nilsson
Lars-Ove Larsson
Original Assignee
Kvaerner Pulping Tech
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
Priority claimed from SE9301960A external-priority patent/SE9301960L/sv
Application filed by Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE9502511A priority Critical patent/SE9502511L/sv
Publication of SE9502511D0 publication Critical patent/SE9502511D0/sv
Publication of SE9502511L publication Critical patent/SE9502511L/sv

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
    • 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)
SE9502511A 1993-06-08 1995-07-10 Förfarande vid massblekning SE9502511L (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9502511A SE9502511L (sv) 1993-06-08 1995-07-10 Förfarande vid massblekning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301960A SE9301960L (sv) 1993-06-08 1993-06-08 Blekning av kemisk massa med peroxid vid övertryck
SE9502511A SE9502511L (sv) 1993-06-08 1995-07-10 Förfarande vid massblekning

Publications (2)

Publication Number Publication Date
SE9502511D0 SE9502511D0 (sv) 1995-07-10
SE9502511L true SE9502511L (sv) 1995-07-10

Family

ID=26661761

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9502511A SE9502511L (sv) 1993-06-08 1995-07-10 Förfarande vid massblekning

Country Status (1)

Country Link
SE (1) SE9502511L (sv)

Also Published As

Publication number Publication date
SE9502511D0 (sv) 1995-07-10

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Legal Events

Date Code Title Description
NAV Patent application has lapsed