FI78132C - En klorbaserad blekningsprocess för sulfatcellulosa som använder icke- alkaliskt eller organiskt lösningsmedel - Google Patents

En klorbaserad blekningsprocess för sulfatcellulosa som använder icke- alkaliskt eller organiskt lösningsmedel Download PDF

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Publication number
FI78132C
FI78132C FI844194A FI844194A FI78132C FI 78132 C FI78132 C FI 78132C FI 844194 A FI844194 A FI 844194A FI 844194 A FI844194 A FI 844194A FI 78132 C FI78132 C FI 78132C
Authority
FI
Finland
Prior art keywords
cellulose
chlorine
treatment
bleaching
extraction
Prior art date
Application number
FI844194A
Other languages
English (en)
Finnish (fi)
Other versions
FI844194A0 (fi
FI844194L (fi
FI78132B (fi
Inventor
Jean J Renard
Shyam S Bhattacharjee
Original Assignee
Int Paper 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 Int Paper Co filed Critical Int Paper Co
Publication of FI844194A0 publication Critical patent/FI844194A0/fi
Publication of FI844194L publication Critical patent/FI844194L/fi
Application granted granted Critical
Publication of FI78132B publication Critical patent/FI78132B/fi
Publication of FI78132C publication Critical patent/FI78132C/sv

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-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
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/1026Other features in bleaching processes
    • D21C9/1036Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI844194A 1983-10-28 1984-10-25 En klorbaserad blekningsprocess för sulfatcellulosa som använder icke- alkaliskt eller organiskt lösningsmedel FI78132C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54626383A 1983-10-28 1983-10-28
US54626383 1983-10-28

Publications (4)

Publication Number Publication Date
FI844194A0 FI844194A0 (fi) 1984-10-25
FI844194L FI844194L (fi) 1985-04-29
FI78132B FI78132B (fi) 1989-02-28
FI78132C true FI78132C (sv) 1989-06-12

Family

ID=24179604

Family Applications (1)

Application Number Title Priority Date Filing Date
FI844194A FI78132C (sv) 1983-10-28 1984-10-25 En klorbaserad blekningsprocess för sulfatcellulosa som använder icke- alkaliskt eller organiskt lösningsmedel

Country Status (3)

Country Link
CA (1) CA1219707A (sv)
FI (1) FI78132C (sv)
SE (1) SE8405369L (sv)

Also Published As

Publication number Publication date
FI844194A0 (fi) 1984-10-25
SE8405369D0 (sv) 1984-10-26
SE8405369L (sv) 1985-04-29
FI844194L (fi) 1985-04-29
CA1219707A (en) 1987-03-31
FI78132B (fi) 1989-02-28

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Legal Events

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MM Patent lapsed

Owner name: INTERNATIONAL PAPER COMPANY