ATA50877A - PROCESS FOR PEROXIDE BLEACHING OF MECHANICAL WOOD MATERIAL - Google Patents

PROCESS FOR PEROXIDE BLEACHING OF MECHANICAL WOOD MATERIAL

Info

Publication number
ATA50877A
ATA50877A AT50877A AT50877A ATA50877A AT A50877 A ATA50877 A AT A50877A AT 50877 A AT50877 A AT 50877A AT 50877 A AT50877 A AT 50877A AT A50877 A ATA50877 A AT A50877A
Authority
AT
Austria
Prior art keywords
wood material
peroxide bleaching
mechanical wood
mechanical
bleaching
Prior art date
Application number
AT50877A
Other languages
German (de)
Other versions
AT357864B (en
Inventor
Goeran Erik Annergren
Per-Olov Lindblad
Tjell-Ake Haegglund
Original Assignee
Sca Development 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 Sca Development Ab filed Critical Sca Development Ab
Publication of ATA50877A publication Critical patent/ATA50877A/en
Application granted granted Critical
Publication of AT357864B publication Critical patent/AT357864B/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
AT50877A 1976-02-05 1977-01-27 METHOD FOR PEROXIDE BLEACHING OF MECHANICAL WOOD AT357864B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7601285A SE407091B (en) 1976-02-05 1976-02-05 WAY TO PEROXIDE BLEACHING THROUGH REFINING CELLULOSE PULP

Publications (2)

Publication Number Publication Date
ATA50877A true ATA50877A (en) 1979-12-15
AT357864B AT357864B (en) 1980-08-11

Family

ID=20326919

Family Applications (1)

Application Number Title Priority Date Filing Date
AT50877A AT357864B (en) 1976-02-05 1977-01-27 METHOD FOR PEROXIDE BLEACHING OF MECHANICAL WOOD

Country Status (9)

Country Link
JP (1) JPS5296204A (en)
AT (1) AT357864B (en)
BR (1) BR7700715A (en)
DE (1) DE2704758B2 (en)
FI (1) FI770150A7 (en)
FR (1) FR2340399A1 (en)
NO (1) NO770384L (en)
NZ (1) NZ183120A (en)
SE (1) SE407091B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE452346C (en) * 1982-12-17 1990-03-26 Sunds Defibrator PROCEDURES FOR PEROXID WHITING OF LIGNOCELLULOSALLY MATERIAL IN TWO STEPS
US5002635A (en) * 1985-09-20 1991-03-26 Scott Paper Company Method for producing pulp using pre-treatment with stabilizers and refining
US4849053A (en) * 1985-09-20 1989-07-18 Scott Paper Company Method for producing pulp using pre-treatment with stabilizers and defibration
DE69004492T3 (en) * 1989-06-06 2001-11-15 Eka Nobel Ab, Bohus Process for bleaching pulps containing lignocellulose.
DE4035813A1 (en) * 1990-11-10 1992-05-14 Akzo Gmbh OXYGEN BLEACHING

Also Published As

Publication number Publication date
DE2704758B2 (en) 1978-05-11
DE2704758A1 (en) 1977-08-11
AT357864B (en) 1980-08-11
JPS5296204A (en) 1977-08-12
NZ183120A (en) 1978-09-20
FR2340399A1 (en) 1977-09-02
NO770384L (en) 1977-08-08
AU2157077A (en) 1978-08-03
FI770150A7 (en) 1977-08-06
BR7700715A (en) 1977-10-11
SE7601285L (en) 1977-08-06
SE407091B (en) 1979-03-12

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee