CA1057008A - Method in sulphite pulping - Google Patents

Method in sulphite pulping

Info

Publication number
CA1057008A
CA1057008A CA234,872A CA234872A CA1057008A CA 1057008 A CA1057008 A CA 1057008A CA 234872 A CA234872 A CA 234872A CA 1057008 A CA1057008 A CA 1057008A
Authority
CA
Canada
Prior art keywords
formate
wood
cooking
ester
added
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA234,872A
Other languages
English (en)
French (fr)
Inventor
Sigbjorn Holgersson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kopparfors AB
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
Application granted granted Critical
Publication of CA1057008A publication Critical patent/CA1057008A/en
Expired legal-status Critical Current

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)
CA234,872A 1974-09-06 1975-09-05 Method in sulphite pulping Expired CA1057008A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA1057008A true CA1057008A (en) 1979-06-26

Family

ID=20322071

Family Applications (1)

Application Number Title Priority Date Filing Date
CA234,872A Expired CA1057008A (en) 1974-09-06 1975-09-05 Method in sulphite pulping

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
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
FI58521C (fi) 1981-02-10
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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