FR2330798A1 - Procede pour blanchir la pate a papier - Google Patents

Procede pour blanchir la pate a papier

Info

Publication number
FR2330798A1
FR2330798A1 FR7526852A FR7526852A FR2330798A1 FR 2330798 A1 FR2330798 A1 FR 2330798A1 FR 7526852 A FR7526852 A FR 7526852A FR 7526852 A FR7526852 A FR 7526852A FR 2330798 A1 FR2330798 A1 FR 2330798A1
Authority
FR
France
Prior art keywords
bleaching
ligno
cellulose
clo2
pref
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.)
Withdrawn
Application number
FR7526852A
Other languages
English (en)
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.)
Valmet AB
Original Assignee
Sunds AB
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 Sunds AB filed Critical Sunds AB
Publication of FR2330798A1 publication Critical patent/FR2330798A1/fr
Withdrawn legal-status Critical Current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
    • D21C9/1026—Other features in bleaching processes
    • 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)
FR7526852A 1974-09-04 1975-09-02 Procede pour blanchir la pate a papier Withdrawn FR2330798A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7411170A SE390178B (sv) 1974-09-04 1974-09-04 Sett vid blekning av lignocellulosahaltigt material med en kombination av gasfasklorering och ett system for fortrengningsblekning innehallande klordioxid

Publications (1)

Publication Number Publication Date
FR2330798A1 true FR2330798A1 (fr) 1977-06-03

Family

ID=20322052

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7526852A Withdrawn FR2330798A1 (fr) 1974-09-04 1975-09-02 Procede pour blanchir la pate a papier

Country Status (9)

Country Link
JP (1) JPS5153004A (un)
AU (1) AU8358175A (un)
BR (1) BR7505456A (un)
DE (1) DE2539402A1 (un)
FI (1) FI752334A (un)
FR (1) FR2330798A1 (un)
NO (1) NO753019L (un)
SE (1) SE390178B (un)
ZA (1) ZA754902B (un)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE451606B (sv) * 1982-09-14 1987-10-19 Sca Development Ab Sett vid blekning av hogutbytesmassor medelst peroxider
SE516969C2 (sv) * 2000-08-14 2002-03-26 Metso Paper Inc Klordioxidblekning i två steg med återföring av filtrat

Also Published As

Publication number Publication date
DE2539402A1 (de) 1976-03-18
NO753019L (un) 1976-03-05
SE7411170L (sv) 1976-03-05
JPS5153004A (un) 1976-05-11
BR7505456A (pt) 1976-08-03
ZA754902B (en) 1976-07-28
AU8358175A (en) 1977-02-03
FI752334A (un) 1976-03-05
SE390178B (sv) 1976-12-06

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Legal Events

Date Code Title Description
ST Notification of lapse