Title:
SEPARATION OF ETHYLENEAMINES
Document Type and Number:
Japanese Patent JPS59175457
Kind Code:
A
Abstract:
PURPOSE: An alcohol is used to effect selective extraction of the titled compound from an aqueous solution containing ehyleneamines into the alcohol phase in the presence of ammonia.
CONSTITUTION: An alcohol of 3W6 carbon atoms is used to extract selectively ethyleneamines from an aqueous solution into the alcohol phase in the presence of ammonia of over 50g/l concentration.
EFFECT: The operation is carried out under relatively mild conditions, thus deterioration of ethyleneamines with heat is remarkably reduced. Ethyleneamines are separated and recovered without consumption of a large amount of heat and effective concentration of dilute ethyleneamine solution is possible.
Inventors:
MURAKAMI TSUGIO
KAWAMOTO TAIZOU
KAWAMOTO TAIZOU
Application Number:
JP4884883A
Publication Date:
October 04, 1984
Filing Date:
March 25, 1983
Export Citation:
Assignee:
TOYO SODA MFG CO LTD
International Classes:
C07D295/02; C07C67/00; C07C209/00; C07C209/86; C07C211/10; C07C211/14; C07D295/12; (IPC1-7): C07C85/26; C07C87/04
Domestic Patent References:
| JPS4739012A |