Method for the purification of raw caprolactam

Details Method for the purification of raw caprolactam Method for the purification of raw caprolactam

1980-04-21

1982-02-09

Bond, Robert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20116

Patent

active

043149405

ABSTRACT:
A method for the purification of raw caprolactam containing primary amides f the formula ##STR1## wherein R is a hydrocarbon radical having 1-14 carbon atoms is described. The raw caprolactam is treated with at least one compound containing at least one hydroxyl group, in an amount of at least 20% by weight with respect to the raw caprolactam, at a temperature equal to or higher than that at which the ammonia, which is a part of the amide of formula I, is liberated. The caprolactam is then separated and isolated from the hydroxyl containing compound by known methods.

REFERENCES:
patent: 4013640 (1977-03-01), Somekh

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