Purification of caprolactam

Details Purification of caprolactam Purification of caprolactam

Filed on

1993-08-30

Date issued

1994-09-27

Examiner

Bond, Robert T.

Patent Class

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

SubClass

Organic compounds

SubSubClass

Unsubstituted hydrocarbyl chain between the ring and the -c-...

Other Related Categories

C07D20112

Type

Patent

Status

active

Patent number

053508475

Description

ABSTRACT:
Caprolactam is purified by oxidative treatment in which mixtures which essentially contain the caprolactam to be purified and unsaturated lactams are treated with oxygen or an oxygen-containing gas mixture in an alkaline medium.

REFERENCES:
patent: 3600381 (1971-08-01), Yamamoto et al.

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