Preparation of caprolactam by Beckmann rearrangement of cyclohex

Details Preparation of caprolactam by Beckmann rearrangement of cyclohex Preparation of caprolactam by Beckmann rearrangement of cyclohex

1992-09-30

1993-11-23

Shah, Mukund J.

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

Organic compounds

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

540540, C07D20104, C07D20116

Patent

active

052645711

ABSTRACT:
A process for preparing caprolactam by Beckmann rearrangement of cyclohexanone oxime with oleum at from 85.degree. to 125.degree. C. in a plurality of rearrangement stages arranged in series entails returning a portion of the reaction mixture leaving the last rearrangement stage to at least one of the preceding rearrangement stages.

REFERENCES:
patent: 3725391 (1973-04-01), Suzuki et al.
patent: 3852273 (1974-12-01), De Rooij
patent: 3953438 (1976-04-01), Smith
patent: 4072678 (1978-02-01), Oyama et al.
patent: 4804754 (1989-02-01), De Decker et al.
patent: 4806638 (1989-02-01), Brand et al.
Derwent Abstract JA7339949 Dec. 29, 1970.

Affiliated with

Also associated with

Rating

Preparation of caprolactam by Beckmann rearrangement of cyclohex does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of caprolactam by Beckmann rearrangement of cyclohex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of caprolactam by Beckmann rearrangement of cyclohex will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1850329