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FI54349B - Foerfarande foer behandling av hartsinnehaollande fibermassor utan anvaendande av alkali - Google Patents

Foerfarande foer behandling av hartsinnehaollande fibermassor utan anvaendande av alkali

Info

Publication number
FI54349B
FI54349B FI1298/73A FI129873A FI54349B FI 54349 B FI54349 B FI 54349B FI 1298/73 A FI1298/73 A FI 1298/73A FI 129873 A FI129873 A FI 129873A FI 54349 B FI54349 B FI 54349B
Authority
FI
Finland
Prior art keywords
hartsinnehaollande
fibermassor
anvaendande
utan
alkali
Prior art date
Application number
FI1298/73A
Other languages
English (en)
Other versions
FI54349C (fi
Inventor
Francois Abadie-Maumert
Nicolai Soteland
Original Assignee
Papirind Forskningsinst
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 Papirind Forskningsinst filed Critical Papirind Forskningsinst
Publication of FI54349B publication Critical patent/FI54349B/fi
Application granted granted Critical
Publication of FI54349C publication Critical patent/FI54349C/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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D21C9/083—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with inorganic compounds
    • 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)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
FI1298/73A 1972-04-25 1973-04-24 Foerfarande foer behandling av hartsinnehaollande fibermassor utan anvaendande av alkali FI54349C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO01440/72A NO128074B (fi) 1972-04-25 1972-04-25

Publications (2)

Publication Number Publication Date
FI54349B true FI54349B (fi) 1978-07-31
FI54349C FI54349C (fi) 1978-11-10

Family

ID=19878204

Family Applications (1)

Application Number Title Priority Date Filing Date
FI1298/73A FI54349C (fi) 1972-04-25 1973-04-24 Foerfarande foer behandling av hartsinnehaollande fibermassor utan anvaendande av alkali

Country Status (3)

Country Link
FI (1) FI54349C (fi)
NO (1) NO128074B (fi)
SE (1) SE404705B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502321C2 (sv) * 1994-03-04 1995-10-02 Kvaerner Pulping Tech Förfarande vid ozonblekning av sulfitmassa
FI115978B (fi) * 2000-11-16 2005-08-31 Ciba Sc Holding Ag Menetelmä ei-kuitupitoisten ainesten ottamiseksi talteen puumateriaalista

Also Published As

Publication number Publication date
FI54349C (fi) 1978-11-10
NO128074B (fi) 1973-09-24
SE404705B (sv) 1978-10-23

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