Preparation of caprolactam

Details Preparation of caprolactam Preparation of caprolactam

1996-10-03

1999-02-23

Manoharan, Virginia

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

Organic compounds

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

540540, 203 73, 203 78, 203DIG16, 203DIG25, C07D20108, B01D 300

Patent

active

058745750

ABSTRACT:
An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the addition of a low or high boiling alcohol in the heating phase, after which the products are obtained by distillation. The process further includes a method of working up the top and bottom products of the reactors to achieve higher yields.

REFERENCES:
patent: 2301964 (1942-11-01), Martin
patent: 4625023 (1986-11-01), Mares et al.
patent: 4764607 (1988-08-01), Balint et al.
patent: 4767503 (1988-08-01), Crescentini et al.
patent: 4767857 (1988-08-01), Merger et al.
patent: 5495014 (1996-02-01), Fuchs et al.
patent: 5495016 (1996-02-01), Achhammer et al.
patent: 5496941 (1996-03-01), Ritz et al.
patent: 5646277 (1997-07-01), Fuchs et al.

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