FI55693C - Alkaliskt massatillverkningsfoerfarande - Google Patents

Alkaliskt massatillverkningsfoerfarande

Info

Publication number
FI55693C
FI55693C FI236673A FI236673A FI55693C FI 55693 C FI55693 C FI 55693C FI 236673 A FI236673 A FI 236673A FI 236673 A FI236673 A FI 236673A FI 55693 C FI55693 C FI 55693C
Authority
FI
Finland
Prior art keywords
massatillverkningsfoerfarande
alkaliskt
alkaliskt massatillverkningsfoerfarande
Prior art date
Application number
FI236673A
Other languages
English (en)
Other versions
FI55693B (fi
Inventor
Alan R Procter
Garrick E Styan
Magnus G Vinje
Original Assignee
Mac Millan Bloedel 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 US00362009A external-priority patent/US3841962A/en
Application filed by Mac Millan Bloedel Ltd filed Critical Mac Millan Bloedel Ltd
Publication of FI55693B publication Critical patent/FI55693B/fi
Application granted granted Critical
Publication of FI55693C publication Critical patent/FI55693C/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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
FI236673A 1972-07-31 1973-07-26 Alkaliskt massatillverkningsfoerfarande FI55693C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27685372A 1972-07-31 1972-07-31
US00362009A US3841962A (en) 1972-07-31 1973-05-21 Hydrogen sulfide pretreatment of lignocellulosic materials in alkaline pulping processes

Publications (2)

Publication Number Publication Date
FI55693B FI55693B (fi) 1979-05-31
FI55693C true FI55693C (fi) 1979-09-10

Family

ID=26958163

Family Applications (1)

Application Number Title Priority Date Filing Date
FI236673A FI55693C (fi) 1972-07-31 1973-07-26 Alkaliskt massatillverkningsfoerfarande

Country Status (5)

Country Link
JP (1) JPS5217121B2 (fi)
FI (1) FI55693C (fi)
FR (1) FR2194840A1 (fi)
NO (1) NO137099C (fi)
SE (1) SE389135B (fi)

Also Published As

Publication number Publication date
NO137099C (no) 1977-12-28
FR2194840A1 (en) 1974-03-01
SE389135B (sv) 1976-10-25
NO137099B (no) 1977-09-19
JPS4992302A (fi) 1974-09-03
FI55693B (fi) 1979-05-31
JPS5217121B2 (fi) 1977-05-13
FR2194840B1 (fi) 1976-04-30

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