CH251134A - Procédé de blanchiment de la pulpe de bois mécanique. - Google Patents

Procédé de blanchiment de la pulpe de bois mécanique.

Info

Publication number
CH251134A
CH251134A CH251134DA CH251134A CH 251134 A CH251134 A CH 251134A CH 251134D A CH251134D A CH 251134DA CH 251134 A CH251134 A CH 251134A
Authority
CH
Switzerland
Prior art keywords
wood pulp
bleaching process
pulp bleaching
mechanical wood
mechanical
Prior art date
Application number
Other languages
English (en)
Inventor
Inc Buffalo Electro-Ch Company
Original Assignee
Buffalo Electro Chem Co
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 Buffalo Electro Chem Co filed Critical Buffalo Electro Chem Co
Publication of CH251134A publication Critical patent/CH251134A/fr

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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
CH251134D 1945-02-05 1945-12-07 Procédé de blanchiment de la pulpe de bois mécanique. CH251134A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US251134XA 1945-02-05 1945-02-05

Publications (1)

Publication Number Publication Date
CH251134A true CH251134A (fr) 1947-10-15

Family

ID=21824118

Family Applications (1)

Application Number Title Priority Date Filing Date
CH251134D CH251134A (fr) 1945-02-05 1945-12-07 Procédé de blanchiment de la pulpe de bois mécanique.

Country Status (1)

Country Link
CH (1) CH251134A (fr)

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