Process for producing .epsilon. -caprolactam

Details Process for producing .epsilon. -caprolactam Process for producing .epsilon. -caprolactam

1994-08-19

1996-03-26

Bond, Robert T.

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

Organic compounds

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

540535, 540540, C07D20104

Patent

active

055021840

ABSTRACT:
The invention provides a process for producing high quality .epsilon.-caprolactam which comprises allowing crude .epsilon.-caprolactam obtained by gas phase Beckmann rearrangement of cyclohexanone oxime to contact with hydrogen at 100.degree.-200.degree. C. in the presence of a hydrogenation catalyst.

REFERENCES:
patent: 4563308 (1986-01-01), Plantema et al.
patent: 4927924 (1990-05-01), Bell et al.
patent: 5032684 (1991-07-01), Neubauer et al.
Romero et al., "Purification of .SIGMA.-Caprolactam by Catalytic Hydrogenation. A Statistical Approach", The Canadian Journal of Chemical Engineering, vol. 60, No. 2, Apr. 1982.
Chemical Abstracts, vol. 96, No. 24, 14 Jun. 1982.

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