FI58521C - Saett att oeka cellulosautbytet vid sulfitkokning av ved - Google Patents

Saett att oeka cellulosautbytet vid sulfitkokning av ved Download PDF

Info

Publication number
FI58521C
FI58521C FI752508A FI752508A FI58521C FI 58521 C FI58521 C FI 58521C FI 752508 A FI752508 A FI 752508A FI 752508 A FI752508 A FI 752508A FI 58521 C FI58521 C FI 58521C
Authority
FI
Finland
Prior art keywords
cooking
formate
cellulosautbytet
ved
vid
Prior art date
Application number
FI752508A
Other languages
English (en)
Finnish (fi)
Other versions
FI752508A (de
FI58521B (fi
Inventor
Sigbjoern Holgersson
Original Assignee
Kopparfors 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 Kopparfors Ab filed Critical Kopparfors Ab
Publication of FI752508A publication Critical patent/FI752508A/fi
Application granted granted Critical
Publication of FI58521B publication Critical patent/FI58521B/fi
Publication of FI58521C publication Critical patent/FI58521C/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Landscapes

  • Paper (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
FI752508A 1974-09-06 1975-09-05 Saett att oeka cellulosautbytet vid sulfitkokning av ved FI58521C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7411268 1974-09-06
SE7411268A SE384883B (sv) 1974-09-06 1974-09-06 Sett att oka cellulosautbytet vid sulfitkokning av ved

Publications (3)

Publication Number Publication Date
FI752508A FI752508A (de) 1976-03-07
FI58521B FI58521B (fi) 1980-10-31
FI58521C true FI58521C (fi) 1981-02-10

Family

ID=20322071

Family Applications (1)

Application Number Title Priority Date Filing Date
FI752508A FI58521C (fi) 1974-09-06 1975-09-05 Saett att oeka cellulosautbytet vid sulfitkokning av ved

Country Status (9)

Country Link
JP (1) JPS5153002A (de)
AT (1) AT344498B (de)
CA (1) CA1057008A (de)
CH (1) CH600036A5 (de)
DE (1) DE2537785A1 (de)
FI (1) FI58521C (de)
FR (1) FR2283988A1 (de)
NO (1) NO144577C (de)
SE (1) SE384883B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816473A1 (de) * 1978-04-15 1979-10-25 Bayer Ag Dispersion zur verwendung bei der zellstoffgewinnung
DE2827111A1 (de) * 1978-06-21 1980-01-10 Bayer Ag Mittel zur verwendung bei der zellstoffgewinnung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE336535C (de) * 1919-12-02 1921-05-03 Zellstoff Und Papierfabrikatio Verfahren zur Herstellung reinster Zellulose von baumwoll- oder wollartiger Beschaffenheit aus Vegetabilien mittels saurer Sulfitlaugen

Also Published As

Publication number Publication date
CA1057008A (en) 1979-06-26
CH600036A5 (de) 1978-06-15
JPS5153002A (en) 1976-05-11
NO144577C (no) 1981-09-23
FI752508A (de) 1976-03-07
AT344498B (de) 1978-07-25
ATA670575A (de) 1977-11-15
SE7411268L (sv) 1976-03-08
FR2283988A1 (fr) 1976-04-02
FR2283988B1 (de) 1978-12-08
NO144577B (no) 1981-06-15
SE384883B (sv) 1976-05-24
NO753029L (de) 1976-03-09
FI58521B (fi) 1980-10-31
DE2537785A1 (de) 1976-03-18

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Legal Events

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MM Patent lapsed

Owner name: KOPPARFORS AKTIEBOLAG