CH293447A - Process for the treatment of damp felted wood pulp for the purpose of bleaching it. - Google Patents

Process for the treatment of damp felted wood pulp for the purpose of bleaching it.

Info

Publication number
CH293447A
CH293447A CH293447DA CH293447A CH 293447 A CH293447 A CH 293447A CH 293447D A CH293447D A CH 293447DA CH 293447 A CH293447 A CH 293447A
Authority
CH
Switzerland
Prior art keywords
bleaching
damp
treatment
wood pulp
felted wood
Prior art date
Application number
Other languages
French (fr)
Inventor
Inc Buffalo Electro-Ch Company
Original Assignee
Buffalo Electro Chem Co
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 Buffalo Electro Chem Co filed Critical Buffalo Electro Chem Co
Publication of CH293447A publication Critical patent/CH293447A/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1047—Conserving the bleached pulp
    • 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
    • D21C9/1026—Other features in bleaching processes
CH293447D 1947-07-30 1949-09-20 Process for the treatment of damp felted wood pulp for the purpose of bleaching it. CH293447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US764902A US2514503A (en) 1947-07-30 1947-07-30 Method of bleaching moist felted groundwood pulp

Publications (1)

Publication Number Publication Date
CH293447A true CH293447A (en) 1953-09-30

Family

ID=25072108

Family Applications (1)

Application Number Title Priority Date Filing Date
CH293447D CH293447A (en) 1947-07-30 1949-09-20 Process for the treatment of damp felted wood pulp for the purpose of bleaching it.

Country Status (3)

Country Link
US (1) US2514503A (en)
CH (1) CH293447A (en)
FR (1) FR995292A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692181A (en) * 1950-03-08 1954-10-19 Buffalo Electro Chem Co Treatment of unbleached sulfite pulp
US2661261A (en) * 1950-06-30 1953-12-01 Buffalo Electro Chem Co Method of superbleaching chemical pulp
US2822236A (en) * 1954-11-19 1958-02-04 Fmc Corp Process of maintaining brightness in high density wood pulp having a ph6-10 by adding hydrogen peroxide and composition produced thereby
US3069309A (en) * 1961-02-01 1962-12-18 Du Pont Pulp bleaching
SE391750B (en) * 1974-03-21 1977-02-28 Kamyr Ab SEE THAT IN A KERL CONTINUALLY TREAT CELLULOSA MASS WITH CHLORINE
US4454005A (en) * 1975-04-10 1984-06-12 The Regents Of The University Of California Method of increasing interfiber bonding among fibers of lignocellulosic material, and resultant product
US8678345B2 (en) 2007-05-22 2014-03-25 Mike Gum Variable orifice gas flow modulating valve
US11591751B2 (en) * 2019-09-17 2023-02-28 Gpcp Ip Holdings Llc High efficiency fiber bleaching process

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1409799A (en) * 1921-06-17 1922-03-14 George M Trostel Method of bleaching pulp
GB351217A (en) * 1930-06-05 1931-06-25 Gustav Adolph Process for bleaching textile goods and fibrous substances of all kinds with hydrogen peroxide
US1957937A (en) * 1930-10-10 1934-05-08 Int Paper Co Process of bleaching fibrous cellulose material
US2107297A (en) * 1934-03-08 1938-02-08 Buffalo Electro Chem Co Bleaching fiber
US2081267A (en) * 1934-05-04 1937-05-25 Int Paper Co Bleached cellulosic product
US2071305A (en) * 1935-05-28 1937-02-16 Great Western Electro Chemical Co Bleaching
US2065395A (en) * 1935-08-27 1936-12-22 Brown Co Fractured wood fiber product
US2125634A (en) * 1937-03-29 1938-08-02 Oxford Paper Co Method of bleaching pulp or paper webs
US2150926A (en) * 1937-07-03 1939-03-21 Buffalo Electro Chem Co Process of making and bleaching paper
US2413583A (en) * 1945-08-11 1946-12-31 St Regis Paper Co Bleaching of groundwood

Also Published As

Publication number Publication date
FR995292A (en) 1951-11-29
US2514503A (en) 1950-07-11

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