SE9302427L - Blekning av returfibrer med väteperoxid - Google Patents

Blekning av returfibrer med väteperoxid

Info

Publication number
SE9302427L
SE9302427L SE9302427A SE9302427A SE9302427L SE 9302427 L SE9302427 L SE 9302427L SE 9302427 A SE9302427 A SE 9302427A SE 9302427 A SE9302427 A SE 9302427A SE 9302427 L SE9302427 L SE 9302427L
Authority
SE
Sweden
Prior art keywords
peracid
stock
bleaching
salts
hydrogen peroxide
Prior art date
Application number
SE9302427A
Other languages
English (en)
Other versions
SE9302427D0 (sv
SE501582C2 (sv
Inventor
Birgitta Sundblad
Sverker Albertsson
Original Assignee
Eka Nobel Ab
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 Eka Nobel Ab filed Critical Eka Nobel Ab
Priority to SE9302427A priority Critical patent/SE501582C2/sv
Publication of SE9302427D0 publication Critical patent/SE9302427D0/sv
Priority to EP19940110420 priority patent/EP0634521A1/en
Priority to FI943333A priority patent/FI943333A/sv
Priority to CA 2127967 priority patent/CA2127967A1/en
Priority to NO942665A priority patent/NO942665L/no
Publication of SE9302427L publication Critical patent/SE9302427L/sv
Publication of SE501582C2 publication Critical patent/SE501582C2/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE9302427A 1993-07-16 1993-07-16 Blekning av returfibrer med väteperoxid SE501582C2 (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9302427A SE501582C2 (sv) 1993-07-16 1993-07-16 Blekning av returfibrer med väteperoxid
EP19940110420 EP0634521A1 (en) 1993-07-16 1994-07-05 Method for bleaching lignocellulose-containing fibres
FI943333A FI943333A (sv) 1993-07-16 1994-07-13 Förfarande för blekning av lignocellulosahaltiga fibrer
CA 2127967 CA2127967A1 (en) 1993-07-16 1994-07-13 Method for bleaching lignocellulose-containing fibres
NO942665A NO942665L (no) 1993-07-16 1994-07-15 Fremgangsmåte ved bleking av lignocelluloseholdige fibre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302427A SE501582C2 (sv) 1993-07-16 1993-07-16 Blekning av returfibrer med väteperoxid

Publications (3)

Publication Number Publication Date
SE9302427D0 SE9302427D0 (sv) 1993-07-16
SE9302427L true SE9302427L (sv) 1995-01-17
SE501582C2 SE501582C2 (sv) 1995-03-20

Family

ID=20390617

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9302427A SE501582C2 (sv) 1993-07-16 1993-07-16 Blekning av returfibrer med väteperoxid

Country Status (1)

Country Link
SE (1) SE501582C2 (sv)

Also Published As

Publication number Publication date
SE9302427D0 (sv) 1993-07-16
SE501582C2 (sv) 1995-03-20

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Legal Events

Date Code Title Description
NUG Patent has lapsed