Treatment of aqueous solutions obtained in the carbalkoxylation

Details Treatment of aqueous solutions obtained in the carbalkoxylation Treatment of aqueous solutions obtained in the carbalkoxylation

1987-07-24

1989-08-29

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

560204, 560193, C07D21170, C07C 6700, C07C 6934

Patent

active

048618950

ABSTRACT:
Aqueous solutions which are obtained in the carbalkoxylation of olefinically unsaturated compounds and contain heterocyclic aromatic nitrogen bases, their transformation products and lower fatty acids and/or their salts are treated by a process in which (a) the aqueous solution is heated to 150.degree.-300.degree. C. under from 10 to 300 bar and (b) heterocyclic aromatic nitrogen bases which are formed again from the transformation products are then separated off.

REFERENCES:
patent: 4258203 (1981-03-01), Platz et al.
patent: 4485255 (1984-11-01), Jenck
Patent Abstracts of Japan (1981) 5(12): 119 c 40. Abst. No.: 55-141440.

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