AT292442B - Process for bleaching wood pulp material - Google Patents

Process for bleaching wood pulp material

Info

Publication number
AT292442B
AT292442B AT896469A AT896469A AT292442B AT 292442 B AT292442 B AT 292442B AT 896469 A AT896469 A AT 896469A AT 896469 A AT896469 A AT 896469A AT 292442 B AT292442 B AT 292442B
Authority
AT
Austria
Prior art keywords
wood pulp
pulp material
bleaching wood
bleaching
wood
Prior art date
Application number
AT896469A
Other languages
German (de)
Original Assignee
Canadian Ind
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 Canadian Ind filed Critical Canadian Ind
Application granted granted Critical
Publication of AT292442B publication Critical patent/AT292442B/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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AT896469A 1968-09-20 1969-09-22 Process for bleaching wood pulp material AT292442B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44904/68A GB1262655A (en) 1968-09-20 1968-09-20 Bleaching of wood pulp

Publications (1)

Publication Number Publication Date
AT292442B true AT292442B (en) 1971-08-25

Family

ID=10435190

Family Applications (1)

Application Number Title Priority Date Filing Date
AT896469A AT292442B (en) 1968-09-20 1969-09-22 Process for bleaching wood pulp material

Country Status (9)

Country Link
AT (1) AT292442B (en)
BR (1) BR6912545D0 (en)
DE (1) DE1947931C3 (en)
FI (1) FI48859C (en)
FR (1) FR2018562A1 (en)
GB (1) GB1262655A (en)
NO (1) NO131761C (en)
SE (1) SE364322B (en)
ZA (1) ZA696595B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572431B1 (en) * 1984-10-25 1987-12-04 Centre Tech Ind Papier PROCESS FOR THE PREPARATION OF CHEMICAL PAPER PULP FOR BLEACHING.
SE9900425L (en) * 1999-02-09 2000-09-04 Skogsind Tekn Foskningsinst Pulp Delignification Procedure
EP3356596A1 (en) * 2015-09-30 2018-08-08 Imerys Minerals Limited Methods for bleaching aqueous pulps and compositions for use in these methods

Also Published As

Publication number Publication date
GB1262655A (en) 1972-02-02
SE364322B (en) 1974-02-18
ZA696595B (en) 1971-04-28
BR6912545D0 (en) 1973-05-03
NO131761C (en) 1977-03-22
FI48859C (en) 1975-01-10
DE1947931B2 (en) 1974-11-14
DE1947931C3 (en) 1975-06-26
FR2018562A1 (en) 1970-05-29
NO131761B (en) 1975-04-14
FI48859B (en) 1974-09-30
DE1947931A1 (en) 1970-03-26

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee