FI48860C - Flerstegsförfarande för blekning av sulfatmassa. - Google Patents

Flerstegsförfarande för blekning av sulfatmassa.

Info

Publication number
FI48860C
FI48860C FI672006A FI200667A FI48860C FI 48860 C FI48860 C FI 48860C FI 672006 A FI672006 A FI 672006A FI 200667 A FI200667 A FI 200667A FI 48860 C FI48860 C FI 48860C
Authority
FI
Finland
Prior art keywords
step process
sulphate pulp
bleaching
bleaching sulphate
pulp
Prior art date
Application number
FI672006A
Other languages
English (en)
Finnish (fi)
Other versions
FI48860B (sv
Inventor
Douglas Haig Andrews
Pierre Desrosiers
Original Assignee
Canadian Ind
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 Canadian Ind filed Critical Canadian Ind
Publication of FI48860B publication Critical patent/FI48860B/fi
Application granted granted Critical
Publication of FI48860C publication Critical patent/FI48860C/sv

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)
FI672006A 1966-07-29 1967-07-20 Flerstegsförfarande för blekning av sulfatmassa. FI48860C (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA966828 1966-07-29

Publications (2)

Publication Number Publication Date
FI48860B FI48860B (sv) 1974-09-30
FI48860C true FI48860C (sv) 1975-01-10

Family

ID=4142604

Family Applications (1)

Application Number Title Priority Date Filing Date
FI672006A FI48860C (sv) 1966-07-29 1967-07-20 Flerstegsförfarande för blekning av sulfatmassa.

Country Status (2)

Country Link
FI (1) FI48860C (sv)
SE (1) SE353357B (sv)

Also Published As

Publication number Publication date
SE353357B (sv) 1973-01-29
FI48860B (sv) 1974-09-30

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