CH486596A - Process for bleaching aqueous cellulose pulp - Google Patents

Process for bleaching aqueous cellulose pulp

Info

Publication number
CH486596A
CH486596A CH894664A CH894664A CH486596A CH 486596 A CH486596 A CH 486596A CH 894664 A CH894664 A CH 894664A CH 894664 A CH894664 A CH 894664A CH 486596 A CH486596 A CH 486596A
Authority
CH
Switzerland
Prior art keywords
cellulose pulp
aqueous cellulose
bleaching aqueous
bleaching
pulp
Prior art date
Application number
CH894664A
Other languages
German (de)
Inventor
Howard Rapson William
Original Assignee
A & W Overseas Dev Ltd
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 A & W Overseas Dev Ltd filed Critical A & W Overseas Dev Ltd
Publication of CH486596A publication Critical patent/CH486596A/en

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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
CH894664A 1963-07-12 1964-07-08 Process for bleaching aqueous cellulose pulp CH486596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA879968 1963-07-12

Publications (1)

Publication Number Publication Date
CH486596A true CH486596A (en) 1970-02-28

Family

ID=4141767

Family Applications (1)

Application Number Title Priority Date Filing Date
CH894664A CH486596A (en) 1963-07-12 1964-07-08 Process for bleaching aqueous cellulose pulp

Country Status (12)

Country Link
US (1) US3536577A (en)
JP (1) JPS5235761B1 (en)
AT (1) AT265008B (en)
CH (1) CH486596A (en)
DE (1) DE1546226B1 (en)
ES (1) ES301960A1 (en)
FI (1) FI43808C (en)
FR (1) FR1407286A (en)
GB (1) GB1007697A (en)
NL (2) NL6407863A (en)
OA (1) OA00199A (en)
SE (1) SE301583B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE334286B (en) * 1968-12-05 1971-04-19 Mo Och Domsjoe Ab
SE391750B (en) * 1974-03-21 1977-02-28 Kamyr Ab SEE THAT IN A KERL CONTINUALLY TREAT CELLULOSA MASS WITH CHLORINE
JPS5422857U (en) * 1977-07-14 1979-02-15
US4325783A (en) * 1978-03-30 1982-04-20 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions
JPS5542838U (en) * 1978-09-13 1980-03-19
US4299653A (en) * 1979-04-16 1981-11-10 Erco Industries Limited Method of bleaching pulp with an aqueous solution of chlorine dioxide and chlorine followed by a chlorine solution
WO2000075420A1 (en) * 1999-06-08 2000-12-14 Eastern Pulp And Paper Corporation Bleaching pulp with high-pressure o¿2?

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494542A (en) * 1946-05-02 1950-01-17 Niagara Alkali Company Method of bleaching pulp
CH315608A (en) * 1952-03-26 1956-08-31 Electro Chimie Metal Process for bleaching cellulose pulp with sulphite or sulphate
BE518419A (en) * 1952-03-26
US3020196A (en) * 1960-08-05 1962-02-06 Allied Chem Production of high brightness high strength wood pulps

Also Published As

Publication number Publication date
FR1407286A (en) 1965-07-30
FI43808B (en) 1971-03-01
FI43808C (en) 1977-09-27
ES301960A1 (en) 1965-01-16
NL6407863A (en) 1965-01-13
GB1007697A (en) 1965-10-22
OA00199A (en) 1966-03-15
AT265008B (en) 1968-09-25
SE301583B (en) 1968-06-10
NL134770C (en)
US3536577A (en) 1970-10-27
DE1546226B1 (en) 1970-11-26
JPS5235761B1 (en) 1977-09-10

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Legal Events

Date Code Title Description
PL Patent ceased