SE411235B - MULTI-STEP BLANKING OF CELLULOSA MASS WITH GASY CHLORINE IN THIRD OR SUBSEQUENT STEPS - Google Patents

MULTI-STEP BLANKING OF CELLULOSA MASS WITH GASY CHLORINE IN THIRD OR SUBSEQUENT STEPS

Info

Publication number
SE411235B
SE411235B SE7413054A SE7413054A SE411235B SE 411235 B SE411235 B SE 411235B SE 7413054 A SE7413054 A SE 7413054A SE 7413054 A SE7413054 A SE 7413054A SE 411235 B SE411235 B SE 411235B
Authority
SE
Sweden
Prior art keywords
gasy
cellulosa
chlorine
mass
subsequent steps
Prior art date
Application number
SE7413054A
Other languages
Swedish (sv)
Other versions
SE7413054L (en
Inventor
C B Christiansen
W R Dial
Original Assignee
Ppg Industries 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 Ppg Industries Inc filed Critical Ppg Industries Inc
Publication of SE7413054L publication Critical patent/SE7413054L/xx
Publication of SE411235B publication Critical patent/SE411235B/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
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Artificial Filaments (AREA)
  • Paper (AREA)
SE7413054A 1973-10-23 1974-10-16 MULTI-STEP BLANKING OF CELLULOSA MASS WITH GASY CHLORINE IN THIRD OR SUBSEQUENT STEPS SE411235B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US408770A US3907632A (en) 1973-10-23 1973-10-23 Bleaching cellulosic pulps with gaseous chlorine at a pH of 7 to 10 in a multistage bleaching process

Publications (2)

Publication Number Publication Date
SE7413054L SE7413054L (en) 1975-04-24
SE411235B true SE411235B (en) 1979-12-10

Family

ID=23617694

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7413054A SE411235B (en) 1973-10-23 1974-10-16 MULTI-STEP BLANKING OF CELLULOSA MASS WITH GASY CHLORINE IN THIRD OR SUBSEQUENT STEPS

Country Status (5)

Country Link
US (1) US3907632A (en)
CA (1) CA1031906A (en)
FI (1) FI279974A (en)
NO (1) NO143432C (en)
SE (1) SE411235B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2436843A1 (en) * 1974-07-31 1976-02-12 Akzo Gmbh MIXTURE OF OXYDATION PRODUCTS OF CELLULOSE, HEMICELLULOSE AND LIGNIN
CN103757963B (en) * 2014-01-07 2015-09-16 昆明理工大学 The method of a kind of chlorine dioxide gas phase bleaching jute skin fiber processed

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968589A (en) * 1958-03-17 1961-01-17 Kimberly Clark Co Continuous pulp bleaching method
SE314286B (en) * 1964-08-07 1969-09-01 Pulp Paper Res Inst
US3433702A (en) * 1965-06-28 1969-03-18 Hooker Chemical Corp Woodpulp bleaching process
US3579419A (en) * 1967-04-24 1971-05-18 Pulp Paper Res Inst Treatment of fluffed pulp fibers with gaseous chlorine
US3630828A (en) * 1968-05-13 1971-12-28 Pulp Paper Res Inst Bleaching of a low-density, substantially uncompacted, porous fluffed cellulosic pulp
GB1242709A (en) * 1968-12-16 1971-08-11 Pulp Paper Res Inst Bleaching of cellulosic pulp
US3501374A (en) * 1968-12-26 1970-03-17 Hooker Chemical Corp Sequential bleaching of kraft pulp with chlorine dioxide and chlorine

Also Published As

Publication number Publication date
US3907632A (en) 1975-09-23
SE7413054L (en) 1975-04-24
NO743153L (en) 1975-05-20
CA1031906A (en) 1978-05-30
NO143432B (en) 1980-11-03
NO143432C (en) 1981-02-11
FI279974A (en) 1975-04-24

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