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FR842235A - Procédé de blanchiment de matières cellulosiques - Google Patents

Procédé de blanchiment de matières cellulosiques

Info

Publication number
FR842235A
FR842235A FR842235DA FR842235A FR 842235 A FR842235 A FR 842235A FR 842235D A FR842235D A FR 842235DA FR 842235 A FR842235 A FR 842235A
Authority
FR
France
Prior art keywords
cellulosic material
bleaching process
material bleaching
cellulosic
bleaching
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mathieson Alkali Works Inc
Original Assignee
Mathieson Alkali Works Inc
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 Mathieson Alkali Works Inc filed Critical Mathieson Alkali Works Inc
Application granted granted Critical
Publication of FR842235A publication Critical patent/FR842235A/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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
FR842235D 1937-09-01 1938-08-17 Procédé de blanchiment de matières cellulosiques Expired FR842235A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US161969A US2235837A (en) 1937-09-01 1937-09-01 Bleaching cellulose

Publications (1)

Publication Number Publication Date
FR842235A true FR842235A (fr) 1939-06-08

Family

ID=22583603

Family Applications (1)

Application Number Title Priority Date Filing Date
FR842235D Expired FR842235A (fr) 1937-09-01 1938-08-17 Procédé de blanchiment de matières cellulosiques

Country Status (3)

Country Link
US (1) US2235837A (fr)
FR (1) FR842235A (fr)
GB (1) GB519522A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478043A (en) * 1940-01-23 1949-08-02 Evans Cyril Harry Treatment of wheat, rye, and other cereals, and bran
US2587064A (en) * 1949-03-09 1952-02-26 Int Paper Canada Method of bleaching wood pulp
BE518419A (fr) * 1952-03-26
US2741537A (en) * 1952-03-26 1956-04-10 Olin Mathieson Available chlorine single-stage bleaching of sulfate pulp
GB762688A (en) * 1954-02-16 1956-12-05 Unilever Ltd Improvements in or relating to the manufacture of soap
FR1109828A (fr) * 1954-07-24 1956-02-02 Fr Du Xylon Soc Procédé de délignification et de blanchiment de fibres cellulosiques par l'emploi debioxyde de chlore

Also Published As

Publication number Publication date
GB519522A (en) 1940-03-29
US2235837A (en) 1941-03-25

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