FR857498A - Process for refining chemically prepared cellulose - Google Patents

Process for refining chemically prepared cellulose

Info

Publication number
FR857498A
FR857498A FR857498DA FR857498A FR 857498 A FR857498 A FR 857498A FR 857498D A FR857498D A FR 857498DA FR 857498 A FR857498 A FR 857498A
Authority
FR
France
Prior art keywords
refining
chemically prepared
prepared cellulose
cellulose
chemically
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
French (fr)
Inventor
Johann Walter Eggert
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 FR857498A publication Critical patent/FR857498A/en
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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
FR857498D 1939-03-27 1939-07-07 Process for refining chemically prepared cellulose Expired FR857498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE857498X 1939-03-27

Publications (1)

Publication Number Publication Date
FR857498A true FR857498A (en) 1940-09-14

Family

ID=6789599

Family Applications (1)

Application Number Title Priority Date Filing Date
FR857498D Expired FR857498A (en) 1939-03-27 1939-07-07 Process for refining chemically prepared cellulose

Country Status (1)

Country Link
FR (1) FR857498A (en)

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