Process for recovering methylene chloride

Details Process for recovering methylene chloride Process for recovering methylene chloride

2007-01-16

2007-01-16

Manoharan, Virginia (Department: 1764)

Distillation: processes, separatory

With measuring, testing or inspecting

Of temperature or pressure

C203S014000, C570S262000

Reexamination Certificate

active

10744792

ABSTRACT:
A system for recovering methylene chloride from an aqueous waste stream is disclosed. The system includes a distillation unit, at least one heat transfer unit, receptacles for methylene chloride and waste product, a temperature probe and a controller configured to selectively divert product flow from the distillation unit to either of the receptacles or to a recycle line back to the distillation unit depending upon the temperature measured by the probe. Also disclosed is a related process of recovering methylene chloride with such a system.

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patent: 5980695 (1999-11-01), Cox et al.
patent: 6551465 (2003-04-01), Van Zile et al.
patent: 6638397 (2003-10-01), Camiener et al.
patent: 6911120 (2005-06-01), Young
patent: 6945536 (2005-09-01), Iwakata et al.

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