Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1991-07-29
1993-01-19
Kummert, Lynn M.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
422 88, 436 2, 436 39, 2521814, 2521817, 423210, G01J 148
Patent
active
051805545
ABSTRACT:
A method of cleaning atmosphere gas used in manufacturing high-purity fine particles of reactive metals comprises the steps of: letting the moisture existing in the atmosphere gas condense into dew droplets using a cryogenic cooling medium; removing the moisture defined by the dew droplets through dissociation by letting it react with metallic Na that has been brought into contact with the dew droplets; generating a vapor of metallic Na in the atmosphere gas so as to remove the moisture still persisting in the atmosphere gas; further removing through dissociation the moisture still persisting in the atmosphere gas by letting it react with Na vapor that has been generated and dispersed into the atmosphere gas; letting the atmosphere gas cleaned of moisture come into contact with black barium powder; and detecting the presence of moisture in the atmosphere gas through a change in color of the black barium powder. The apparatus for practicing the method comprises two devices: one is a Na vapor generator and the other is a tract amount moisture detector.
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Inazuki Yukio
Nakazawa Hideo
Yamaguchi Toru
Collins Laura E.
Gossett Dykema
Ishikawajima-Harima Heavy Industries Co. Ltd.
Kummert Lynn M.
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