Wet-process apparatus

Details Wet-process apparatus Wet-process apparatus

1993-10-14

1994-09-06

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422172, 553852, 454 49, 454 56, B01D 5334, B01D 5000

Patent

active

053446151

ABSTRACT:
The present invention provides a wet-processing apparatus comprising a chamber having a working space, means for wet processing in the working space, means for supplying nitrogen gas in fluid communication with the chamber, a nitrogen gas outlet located in a wall of the chamber, means for cleaning nitrogen gas by removing contaminants mixed therewith located in an area of the chamber downstream of the working space and upstream of the nitrogen gas outlet and having a contaminated gas inlet and a treated gas outlet in fluid communication with the chamber, means for diverting gas in the chamber located downstream of the treated gas outlet and upstream of the nitrogen gas supplying means, the means for diverting gas having a first position providing egress of treated gas from the chamber through the nitrogen gas outlet while inhibiting fluid communication to other parts of the chamber and a second position permitting fluid communication and recirculation of the treated gas to other parts of the chamber while preventing egress of the treated gas through the nitrogen gas outlet, and means for circulating nitrogen gas in the chamber.

REFERENCES:
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patent: 4433698 (1984-04-01), Blaul
patent: 4702829 (1987-10-01), Betz
patent: 4707341 (1987-11-01), Koch et al.
patent: 4867949 (1989-09-01), Betz
patent: 5079045 (1992-01-01), Luhmann
Analytical Chemistry vol. 41, No. 12, Oct. 1969; pp. 1708-1709.
Handbuch der Praparativen Anorganischen Chemie.
Methoden der Organischen Chemie.
Chemical Patents Index Documentation Abstracts Journal.

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