Separation processes

Details Separation processes Separation processes

1998-06-15

2000-04-04

Therkorn, Ernest G.

Liquid purification or separation

Processes

Chromatography

540540, B01D 1508

Patent

active

060457031

ABSTRACT:
This invention relates to a process for separating epsilon caprolactam from a feed mixture comprising epsilon caprolactam and octahydrophenazine which process comprises contacting under adsorption conditions said mixture with an adsorbent, selectively adsorbing said epsilon caprolactam to substantial exclusion of said octahydrophenazine, removing the non-adsorbed portion of the feed mixture from contact with the adsorbent, and thereafter recovering high purity epsilon caprolactam by desorption under desorption conditions. The process can also be conducted in a batch or semi-batch manner or in a continuous manner using moving bed or simulated moving bed technologies.

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