FI54347C - Foerfarande foer framstaellning av kemisk massa - Google Patents

Foerfarande foer framstaellning av kemisk massa

Info

Publication number
FI54347C
FI54347C FI113/68A FI11368A FI54347C FI 54347 C FI54347 C FI 54347C FI 113/68 A FI113/68 A FI 113/68A FI 11368 A FI11368 A FI 11368A FI 54347 C FI54347 C FI 54347C
Authority
FI
Finland
Prior art keywords
kemisk
massa
foerfarande foer
foer framstaellning
framstaellning
Prior art date
Application number
FI113/68A
Other languages
English (en)
Other versions
FI54347B (fi
Inventor
William Howard Rapson
Original Assignee
Erco Envirotech Ltd
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 GB2240/67A external-priority patent/GB1217833A/en
Application filed by Erco Envirotech Ltd filed Critical Erco Envirotech Ltd
Application granted granted Critical
Publication of FI54347B publication Critical patent/FI54347B/fi
Publication of FI54347C publication Critical patent/FI54347C/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
    • D21C9/1026—Other features in bleaching processes
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI113/68A 1967-01-16 1968-01-16 Foerfarande foer framstaellning av kemisk massa FI54347C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2240/67A GB1217833A (en) 1967-01-16 1967-01-16 Improved cellulosic pulp process

Publications (2)

Publication Number Publication Date
FI54347B FI54347B (fi) 1978-07-31
FI54347C true FI54347C (fi) 1978-11-10

Family

ID=9736070

Family Applications (1)

Application Number Title Priority Date Filing Date
FI113/68A FI54347C (fi) 1967-01-16 1968-01-16 Foerfarande foer framstaellning av kemisk massa

Country Status (4)

Country Link
JP (1) JPS523002B1 (fi)
FI (1) FI54347C (fi)
NO (1) NO127630B (fi)
SE (1) SE353928B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9001547L (sv) * 1990-04-30 1991-10-31 Sunds Defibrator Ind Ab Blekningav kemisk massa
SE521780C2 (sv) * 2003-01-31 2003-12-09 Kvaerner Pulping Tech Förfarande för blekning av cellulosamassa samt bleklinje härför

Also Published As

Publication number Publication date
NO127630B (fi) 1973-07-23
SE353928B (fi) 1973-02-19
FI54347B (fi) 1978-07-31
JPS523002B1 (fi) 1977-01-25

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