FI46757C - Tapa valkaista selluloosapitoista ainetta. - Google Patents

Tapa valkaista selluloosapitoista ainetta.

Info

Publication number
FI46757C
FI46757C FI660931A FI93166A FI46757C FI 46757 C FI46757 C FI 46757C FI 660931 A FI660931 A FI 660931A FI 93166 A FI93166 A FI 93166A FI 46757 C FI46757 C FI 46757C
Authority
FI
Finland
Prior art keywords
bleach
way
cellulosic substance
cellulosic
substance
Prior art date
Application number
FI660931A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI46757B (Direct
Inventor
Malm
Original Assignee
Svenska Cellulosa 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 Svenska Cellulosa Ab filed Critical Svenska Cellulosa Ab
Application granted granted Critical
Publication of FI46757B publication Critical patent/FI46757B/fi
Publication of FI46757C publication Critical patent/FI46757C/fi

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
    • 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)
FI660931A 1965-04-12 1966-04-12 Tapa valkaista selluloosapitoista ainetta. FI46757C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE4782/65A SE307727B (Direct) 1965-04-12 1965-04-12

Publications (2)

Publication Number Publication Date
FI46757B FI46757B (Direct) 1973-02-28
FI46757C true FI46757C (fi) 1973-06-11

Family

ID=20264965

Family Applications (1)

Application Number Title Priority Date Filing Date
FI660931A FI46757C (fi) 1965-04-12 1966-04-12 Tapa valkaista selluloosapitoista ainetta.

Country Status (2)

Country Link
FI (1) FI46757C (Direct)
SE (1) SE307727B (Direct)

Also Published As

Publication number Publication date
SE307727B (Direct) 1969-01-13
FI46757B (Direct) 1973-02-28

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