Coating processes – Foraminous product produced
Patent
1994-01-10
1995-05-16
King, Roy V.
Coating processes
Foraminous product produced
427244, 4272553, 4272552, 4272551, 4272481, 95 55, 96 11, B05D 500, C23C 1640
Patent
active
054158915
ABSTRACT:
A novel membrane preparation process via chemical vapor deposition (CVD) deposits a film on a microporous ceramic support at a low temperature (300.degree. to 550.degree. C.) with organic metallic compounds as precursors and then converts the film into porous oxide at a higher temperature (350.degree. C. to 800.degree. C., preferably 450.degree. C. to 600.degree. C.) to increase its permeability and stability at a given process application temperature. The novel membrane is used for gas separations at an elevated temperature (300.degree. C. to 800.degree. C.). The novel membrane can be used as a catalytic membrane reactor which selectively removes one of the reaction products, thereby enhancing the conversion of the reaction. The ultrafiltration membrane provides gaseous mixtures separation media having high permeance and superior hydrogen selectivity.
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Liu Paul K. T.
Wu Jeffrey C.
Glantz Douglas G.
King Roy V.
Media and Process Technology Inc.
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