FI66031B - Foerstaerkning av mekanisk massa genom kemisk behandling - Google Patents

Foerstaerkning av mekanisk massa genom kemisk behandling Download PDF

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Publication number
FI66031B
FI66031B FI751733A FI751733A FI66031B FI 66031 B FI66031 B FI 66031B FI 751733 A FI751733 A FI 751733A FI 751733 A FI751733 A FI 751733A FI 66031 B FI66031 B FI 66031B
Authority
FI
Finland
Prior art keywords
pulp
concentration
chlorine
process according
treated
Prior art date
Application number
FI751733A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI751733A7 (cs
Inventor
Thomas Joseph Michae Mcdonough
Original Assignee
Canadian Ind
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
Priority claimed from GB2584674A external-priority patent/GB1505076A/en
Application filed by Canadian Ind filed Critical Canadian Ind
Publication of FI751733A7 publication Critical patent/FI751733A7/fi
Application granted granted Critical
Publication of FI66031B publication Critical patent/FI66031B/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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Reinforced Plastic Materials (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Materials For Medical Uses (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Secondary Cells (AREA)
FI751733A 1974-06-11 1975-06-10 Foerstaerkning av mekanisk massa genom kemisk behandling FI66031B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2584674A GB1505076A (en) 1974-06-11 1974-06-11 Strenghening of mechanical pulp by chemical treatment
GB2584674 1974-06-11

Publications (2)

Publication Number Publication Date
FI751733A7 FI751733A7 (cs) 1975-12-12
FI66031B true FI66031B (fi) 1984-04-30

Family

ID=10234295

Family Applications (1)

Application Number Title Priority Date Filing Date
FI751733A FI66031B (fi) 1974-06-11 1975-06-10 Foerstaerkning av mekanisk massa genom kemisk behandling

Country Status (7)

Country Link
JP (1) JPS517201A (cs)
BR (1) BR7503681A (cs)
CA (1) CA1056558A (cs)
ES (1) ES438434A1 (cs)
FI (1) FI66031B (cs)
NO (1) NO145141C (cs)
SE (1) SE7506647L (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127982A (en) * 1976-04-17 1977-10-27 Eidai Co Ltd Process for manufacturing special particleboard
SE9000340L (sv) * 1990-01-31 1991-08-01 Eka Nobel Ab Foerfarande vid blekning av lignocellulosahaltigt material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4887101A (cs) * 1972-02-22 1973-11-16

Also Published As

Publication number Publication date
NO145141C (no) 1982-01-20
BR7503681A (pt) 1976-06-29
JPS517201A (cs) 1976-01-21
FI751733A7 (cs) 1975-12-12
CA1056558A (en) 1979-06-19
SE7506647L (sv) 1975-12-12
ES438434A1 (es) 1977-02-01
NO752026L (cs) 1975-12-12
NO145141B (no) 1981-10-12

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Owner name: CANADIAN INDUSTRIES LIMITED