FR69366E - Process for delignification and bleaching of cellulose fibers using chlorine dioxide - Google Patents

Process for delignification and bleaching of cellulose fibers using chlorine dioxide

Info

Publication number
FR69366E
FR69366E FR69366DA FR69366E FR 69366 E FR69366 E FR 69366E FR 69366D A FR69366D A FR 69366DA FR 69366 E FR69366 E FR 69366E
Authority
FR
France
Prior art keywords
delignification
bleaching
chlorine dioxide
cellulose fibers
cellulose
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)
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.)
FR DU XYLON SOC
Original Assignee
FR DU XYLON SOC
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 FR DU XYLON SOC filed Critical FR DU XYLON SOC
Application granted granted Critical
Publication of FR69366E publication Critical patent/FR69366E/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
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR69366D 1954-07-24 1955-06-07 Process for delignification and bleaching of cellulose fibers using chlorine dioxide Expired FR69366E (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR812144X 1954-07-24
FR332821X 1954-07-24
FR70655X 1955-06-07

Publications (1)

Publication Number Publication Date
FR69366E true FR69366E (en) 1958-11-06

Family

ID=32966120

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1109828D Expired FR1109828A (en) 1954-07-24 1954-07-24 Process for delignification and bleaching of cellulosic fibers by the use of chlorine dioxide
FR69366D Expired FR69366E (en) 1954-07-24 1955-06-07 Process for delignification and bleaching of cellulose fibers using chlorine dioxide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1109828D Expired FR1109828A (en) 1954-07-24 1954-07-24 Process for delignification and bleaching of cellulosic fibers by the use of chlorine dioxide

Country Status (3)

Country Link
CH (1) CH332821A (en)
DE (1) DE1080391B (en)
FR (2) FR1109828A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1164748A (en) 1957-01-15 1958-10-14 Fr Du Xylon Soc Improvements in the treatment of plant materials with a view to obtaining paper pulp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE388343C (en) * 1922-12-12 1924-01-11 Adolf Kaempf Dr Process for the production of pulp
DE512927C (en) * 1927-05-22 1930-11-14 I G Farbenindustrie Akt Ges Process for the digestion of vegetable fibers with chloric acid
AT136521B (en) * 1931-12-16 1934-02-10 Waldhof Zellstoff Fab Process for the production of cellulosic material.
US2235837A (en) * 1937-09-01 1941-03-25 Mathieson Alkali Works Inc Bleaching cellulose
USRE23218E (en) * 1945-02-21 1950-04-11 Catalytic bleaching with chlorites
FI24781A (en) * 1947-10-28 1951-01-10 Solvay An example of an oxidizing medium is chlorinated for fiber treatment

Also Published As

Publication number Publication date
DE1080391B (en) 1960-04-21
FR1109828A (en) 1956-02-02
CH332821A (en) 1958-09-30

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