FI78326C - Foerfarande foer behandling av cellulosamassa. - Google Patents

Foerfarande foer behandling av cellulosamassa. Download PDF

Info

Publication number
FI78326C
FI78326C FI860328A FI860328A FI78326C FI 78326 C FI78326 C FI 78326C FI 860328 A FI860328 A FI 860328A FI 860328 A FI860328 A FI 860328A FI 78326 C FI78326 C FI 78326C
Authority
FI
Finland
Prior art keywords
pulp
oxygen
foam
vessel
reaction
Prior art date
Application number
FI860328A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI860328A0 (fi
FI860328A (fi
FI78326B (fi
Inventor
Sven-Goeran Svensson
Lars Blomberg
Ingemar Croon
Original Assignee
Aga 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 Aga Ab filed Critical Aga Ab
Publication of FI860328A0 publication Critical patent/FI860328A0/fi
Publication of FI860328A publication Critical patent/FI860328A/fi
Publication of FI78326B publication Critical patent/FI78326B/fi
Application granted granted Critical
Publication of FI78326C publication Critical patent/FI78326C/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI860328A 1985-01-24 1986-01-23 Foerfarande foer behandling av cellulosamassa. FI78326C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8500342 1985-01-24
SE8500342A SE452896B (sv) 1985-01-24 1985-01-24 Forfarande for behandling av cellulosamassor

Publications (4)

Publication Number Publication Date
FI860328A0 FI860328A0 (fi) 1986-01-23
FI860328A FI860328A (fi) 1986-07-25
FI78326B FI78326B (fi) 1989-03-31
FI78326C true FI78326C (fi) 1989-07-10

Family

ID=20358888

Family Applications (1)

Application Number Title Priority Date Filing Date
FI860328A FI78326C (fi) 1985-01-24 1986-01-23 Foerfarande foer behandling av cellulosamassa.

Country Status (8)

Country Link
JP (1) JPS61201094A (xx)
BR (1) BR8600268A (xx)
CH (1) CH668788A5 (xx)
DE (1) DE3601808A1 (xx)
FI (1) FI78326C (xx)
FR (1) FR2576331B1 (xx)
NO (1) NO860249L (xx)
SE (1) SE452896B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460202B (sv) * 1987-03-13 1989-09-18 Aga Ab Saett vid behandling av ett material med en gas i en vaetska
CN110670400B (zh) * 2019-09-25 2020-11-27 刘澄 一种用于卫生巾艾绒芯片立式蒸煮釜

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE126265C (xx) *
SE390549C (sv) * 1973-12-20 1986-04-14 Ahlstroem Oy Sett att bleka cellulosahaltigt material med syre eller fritt syre innehallande gas i alkalisk miljo
JPS5249306A (en) * 1975-10-20 1977-04-20 Toyo Pulp Co Ltd Process for bleaching pulp under normal pressure with air bubble
JPS5299302A (en) * 1976-02-13 1977-08-20 Toyo Pulp Co Ltd Process for separating lignin from cellulose fiber
SE462919B (sv) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre

Also Published As

Publication number Publication date
NO860249L (no) 1986-07-25
CH668788A5 (de) 1989-01-31
DE3601808C2 (xx) 1988-12-08
SE452896B (sv) 1987-12-21
FR2576331A1 (fr) 1986-07-25
SE8500342L (sv) 1986-07-25
FI860328A0 (fi) 1986-01-23
BR8600268A (pt) 1986-10-07
FR2576331B1 (fr) 1988-06-17
DE3601808A1 (de) 1986-07-24
FI860328A (fi) 1986-07-25
FI78326B (fi) 1989-03-31
JPS61201094A (ja) 1986-09-05
SE8500342D0 (sv) 1985-01-24

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MM Patent lapsed

Owner name: AGA AKTIEBOLAG