Recovery of caprolactam from distillation residues obtained in t

Details Recovery of caprolactam from distillation residues obtained in t Recovery of caprolactam from distillation residues obtained in t

1994-06-27

1995-08-15

Manoharan, Virginia

Distillation: processes, separatory

Convective distillation with normally gaseous medium, e.g., air

203 92, 203 95, 540540, B01D 334, C07D20116

Patent

active

054416078

ABSTRACT:
Recovery of caprolactam and of an alkali metal carbonate from distillation residues which are obtained in the purification of caprolactam and contain caprolactam and/or oligomers and/or polymers of caprolactam and also alkali metal hydroxides by

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Chem. Abst. vol. 76, No. 6, Feb. 7, 1972 (English abstract of JP-A 46 024 388).
Derwent Publications Ltd., Week 7743, AN 77-76353Y (English abstract of JP-A 50 123 690).

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