Continuous purification of caprolactam

Details Continuous purification of caprolactam Continuous purification of caprolactam

1990-07-12

1991-07-16

Bond, Robert T.

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

Organic compounds

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

C07D20116

Patent

active

050326848

ABSTRACT:
Caprolactam is purified continuously by passing a 75-95% strength by weight aqueous caprolactam solution together with hydrogen at 50.degree.-95.degree. C. and 1.5-100 bar upward through a fixed-bed supported palladium or nickel catalyst in a tubular zone while maintaining a residence time of from 10 to 100 min.

REFERENCES:
patent: 2786052 (1957-03-01), Kampschmidt

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