FR788915A - Procédé de blanchiment de la pâte de bois - Google Patents

Procédé de blanchiment de la pâte de bois

Info

Publication number
FR788915A
FR788915A FR788915DA FR788915A FR 788915 A FR788915 A FR 788915A FR 788915D A FR788915D A FR 788915DA FR 788915 A FR788915 A FR 788915A
Authority
FR
France
Prior art keywords
wood pulp
bleaching process
pulp bleaching
wood
pulp
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Alois Danninger
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 filed Critical
Application granted granted Critical
Publication of FR788915A publication Critical patent/FR788915A/fr
Expired legal-status Critical Current

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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR788915D 1933-09-03 1935-04-16 Procédé de blanchiment de la pâte de bois Expired FR788915A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH137377D DE638711C (de) 1933-09-03 1933-09-03 Verfahren zum Bleichen von Holzstoff durch Behandlung mit Hydrosulfit

Publications (1)

Publication Number Publication Date
FR788915A true FR788915A (fr) 1935-10-18

Family

ID=9996988

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788915D Expired FR788915A (fr) 1933-09-03 1935-04-16 Procédé de blanchiment de la pâte de bois

Country Status (4)

Country Link
CH (1) CH183215A (fr)
DE (1) DE638711C (fr)
FR (1) FR788915A (fr)
GB (1) GB442336A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450034A (en) * 1943-12-01 1948-09-28 Int Paper Co Groundwood bleaching by hydrosulfite
GB665273A (en) * 1948-11-16 1952-01-23 Dunlop Rubber Co Improvements in disc brakes

Also Published As

Publication number Publication date
GB442336A (en) 1936-02-06
CH183215A (de) 1936-03-31
DE638711C (de) 1936-11-21

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