SE8303428L - Forfarande av delignifiering av cellulosamassa - Google Patents

Forfarande av delignifiering av cellulosamassa

Info

Publication number
SE8303428L
SE8303428L SE8303428A SE8303428A SE8303428L SE 8303428 L SE8303428 L SE 8303428L SE 8303428 A SE8303428 A SE 8303428A SE 8303428 A SE8303428 A SE 8303428A SE 8303428 L SE8303428 L SE 8303428L
Authority
SE
Sweden
Prior art keywords
cellulosamassa
delignification
procedure
Prior art date
Application number
SE8303428A
Other languages
English (en)
Swedish (sv)
Other versions
SE8303428D0 (sv
Inventor
E Wathen
L Luotonen
E Forsten
Original Assignee
Rauma Repola Oy
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 Rauma Repola Oy filed Critical Rauma Repola Oy
Publication of SE8303428D0 publication Critical patent/SE8303428D0/xx
Publication of SE8303428L publication Critical patent/SE8303428L/xx

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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE8303428A 1982-06-18 1983-06-15 Forfarande av delignifiering av cellulosamassa SE8303428L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI822193A FI66032C (fi) 1982-06-18 1982-06-18 Foerfarande vid delignifiering av cellulosamassa

Publications (2)

Publication Number Publication Date
SE8303428D0 SE8303428D0 (sv) 1983-06-15
SE8303428L true SE8303428L (sv) 1983-12-19

Family

ID=8515719

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8303428A SE8303428L (sv) 1982-06-18 1983-06-15 Forfarande av delignifiering av cellulosamassa

Country Status (2)

Country Link
FI (1) FI66032C (xx)
SE (1) SE8303428L (xx)

Also Published As

Publication number Publication date
SE8303428D0 (sv) 1983-06-15
FI66032C (fi) 1984-08-10
FI822193A0 (fi) 1982-06-18
FI822193L (fi) 1983-12-19
FI66032B (fi) 1984-04-30

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