Purification of .epsilon.-caprolactam

Details Purification of .epsilon.-caprolactam Purification of .epsilon.-caprolactam

1977-09-09

1979-10-09

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20116

Patent

active

041705920

ABSTRACT:
A process for the purification of a solution of .epsilon.-caprolactam in benzene, toluene or xylene by washing with a liquid, wherein the washing liquid is a solution of .epsilon.-caprolactam in water in a weight ratio of from 15 : 1 to 1 : 3, which is used in a quantity of from 5 to 20% by weight, based on the solution of caprolactam in benzene, toluene or xylene, and wherein there are several washing stages so that the equilibrium between the two solutions can be readjusted.

REFERENCES:
patent: 2758991 (1956-08-01), Kretzers et al.
patent: 3761467 (1973-09-01), Williams et al.
patent: 4036830 (1977-07-01), De Rooij et al.

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