Document Type and Number:
Japanese Patent JPS6336601
Kind Code:
B2
Abstract:
PCT No. PCT/FI82/00070 Sec. 371 Date Aug. 30, 1983 Sec. 102(e) Date Aug. 30, 1983 PCT Filed Dec. 30, 1982 PCT Pub. No. WO83/02279 PCT Pub. Date Jul. 7, 1983.The present invention concerns a procedure for precipitating cellulose carbamate from an aqueous alkali solution. The solution is brought into contact with an aqueous solution of sulphuric acid containing one or several cations selected from the group consisting of Na, Al, Mg, Zn and Ca cations, whereby in the precipitation of cellulose carbamate the advantage is gained that the dry matter content of the fibre can be made high enough.
Inventors:
MANDERU REO
EKURANDO BIDAARU
EKUMAN KURUTO
HATSUTSUUNEN YOKO AI
TORUUNEN ORII TEI
EKURANDO BIDAARU
EKUMAN KURUTO
HATSUTSUUNEN YOKO AI
TORUUNEN ORII TEI
Application Number:
JP50034082A
Publication Date:
July 21, 1988
Filing Date:
January 21, 1982
Export Citation:
Assignee:
NESTE OY
International Classes:
B01J31/02; C07D233/00; C07B61/00; C07D233/60; C07D233/68; C07D233/70; C07D233/91; C07D333/00; C07D401/00; C07D409/00; C07D521/00; C08B1/00; C08B15/06; C08J3/14; D01F2/02; (IPC1-7): C08B15/06