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FR1071422A - Process for bleaching cellulose pulp with sulphite or sulphate - Google Patents

Process for bleaching cellulose pulp with sulphite or sulphate

Info

Publication number
FR1071422A
FR1071422A FR1071422DA FR1071422A FR 1071422 A FR1071422 A FR 1071422A FR 1071422D A FR1071422D A FR 1071422DA FR 1071422 A FR1071422 A FR 1071422A
Authority
FR
France
Prior art keywords
sulphite
sulphate
cellulose pulp
bleaching cellulose
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
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Original Assignee
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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 Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU filed Critical Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Application granted granted Critical
Publication of FR1071422A publication Critical patent/FR1071422A/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
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FR1071422D 1952-03-26 1953-02-24 Process for bleaching cellulose pulp with sulphite or sulphate Expired FR1071422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US278747A US2741536A (en) 1952-03-26 1952-03-26 Available chlorine multi-stage bleaching of sulfite pulp

Publications (1)

Publication Number Publication Date
FR1071422A true FR1071422A (en) 1954-08-31

Family

ID=23066179

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1071422D Expired FR1071422A (en) 1952-03-26 1953-02-24 Process for bleaching cellulose pulp with sulphite or sulphate

Country Status (3)

Country Link
US (1) US2741536A (en)
BE (1) BE518419A (en)
FR (1) FR1071422A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL134770C (en) * 1963-07-12
US3433702A (en) * 1965-06-28 1969-03-18 Hooker Chemical Corp Woodpulp bleaching process
USRE28884E (en) * 1965-06-28 1976-06-29 Hooker Chemicals & Plastics Corporation Woodpulp bleaching process
USRE28887E (en) * 1968-12-26 1976-06-29 Hooker Chemicals & Plastics Corporation Sequential bleaching of kraft pulp with chlorine dioxide followed by chlorine
US3501374A (en) * 1968-12-26 1970-03-17 Hooker Chemical Corp Sequential bleaching of kraft pulp with chlorine dioxide and chlorine
US4325783A (en) * 1978-03-30 1982-04-20 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE331907C (en) * 1922-01-04 1921-01-14 Schmidt Erich Process for the production of cellulose from wood and similar cellulose-containing materials
US2235837A (en) * 1937-09-01 1941-03-25 Mathieson Alkali Works Inc Bleaching cellulose
US2129719A (en) * 1937-09-13 1938-09-13 Mathieson Alkali Works Inc Bleaching method
US2166330A (en) * 1938-09-12 1939-07-18 Mathieson Alkali Works Inc Method of bleaching
BE446444A (en) * 1941-08-06

Also Published As

Publication number Publication date
BE518419A (en)
US2741536A (en) 1956-04-10

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