FI54508C - Foerfarande foer att oeka utbytet av cellulosa - Google Patents

Foerfarande foer att oeka utbytet av cellulosa Download PDF

Info

Publication number
FI54508C
FI54508C FI209471A FI209471A FI54508C FI 54508 C FI54508 C FI 54508C FI 209471 A FI209471 A FI 209471A FI 209471 A FI209471 A FI 209471A FI 54508 C FI54508 C FI 54508C
Authority
FI
Finland
Prior art keywords
cooking
anthraquinone
cellulose
cellulosa
utbytet
Prior art date
Application number
FI209471A
Other languages
English (en)
Finnish (fi)
Other versions
FI54508B (fi
Inventor
Guenter Fiehn
Original Assignee
Inst Zellstoff U Papier
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 Inst Zellstoff U Papier filed Critical Inst Zellstoff U Papier
Application granted granted Critical
Publication of FI54508B publication Critical patent/FI54508B/fi
Publication of FI54508C publication Critical patent/FI54508C/fi

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00Pulping cellulose-containing materials
    • D21C3/22Other features of pulping processes
    • D21C3/222Use of compounds accelerating the pulping processes

Landscapes

  • Paper (AREA)
FI209471A 1970-07-23 1971-07-22 Foerfarande foer att oeka utbytet av cellulosa FI54508C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD14903370 1970-07-23
DD14903370A DD98549A1 (enrdf_load_stackoverflow) 1970-07-23 1970-07-23

Publications (2)

Publication Number Publication Date
FI54508B FI54508B (fi) 1978-08-31
FI54508C true FI54508C (fi) 1980-03-14

Family

ID=5482760

Family Applications (1)

Application Number Title Priority Date Filing Date
FI209471A FI54508C (fi) 1970-07-23 1971-07-22 Foerfarande foer att oeka utbytet av cellulosa

Country Status (4)

Country Link
DD (1) DD98549A1 (enrdf_load_stackoverflow)
FI (1) FI54508C (enrdf_load_stackoverflow)
SE (1) SE381896B (enrdf_load_stackoverflow)
SU (1) SU437310A3 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5143403A (en) * 1974-10-09 1976-04-14 Honshu Paper Co Ltd Arukariparupuno seizohoho
JPS51112903A (en) * 1975-03-26 1976-10-05 Honshu Paper Co Ltd Process for digesting lignocellulose material with sulphites
CA1073161A (en) * 1975-09-05 1980-03-11 Canadian Industries Limited Delignification process
ZA773044B (en) * 1976-06-02 1978-04-26 Australian Paper Manufacturers Improvements in pulping processes
CA1094264A (en) * 1976-12-14 1981-01-27 Canadian Industries Limited Delignification of lignocellulosic material with a soda liquor containing a cyclic keto compound and a nitro aromatic compound
US4134787A (en) * 1978-05-26 1979-01-16 International Paper Company Delignification of lignocellulosic material with an alkaline liquor containing a cyclic amino compound

Also Published As

Publication number Publication date
SE381896B (sv) 1975-12-22
DD98549A1 (enrdf_load_stackoverflow) 1973-06-20
FI54508B (fi) 1978-08-31
SU437310A3 (ru) 1974-07-25

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