Method for manufacturing ultrathin inorganic membranes

Details Method for manufacturing ultrathin inorganic membranes Method for manufacturing ultrathin inorganic membranes

1992-01-02

1992-11-03

Spear, Frank

Liquid purification or separation

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Supported, shaped or superimposed formed mediums

21050025, B01D 5322

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051606186

ABSTRACT:
The present invention is a method for manufacturing ultrathin inorganic membranes comprising yttria-stabilized zirconia (YSZ) in a thickness of .ltoreq.0.5 .mu.m which has been deposited onto a lanthanum-doped alumina surface layer of a porous alumina substrate having an average pore diameter of less than about 50 nm. The inorganic membranes formed by the method provide oxygen flux rates superior to those known in the art and are suitable for numerous uses including processes for separating oxygen from oxygen-containing gaseous mixtures and in processes for partially oxidizing hydrocarbons to their corresponding oxidized products.

REFERENCES:
patent: 5106654 (1992-04-01), Isenberg
Pal et al.; Westinghouse R&D Center, Pittsburgh, Pa. (High Temperature Science 27(1990)251).
Burggraaf, et al.; (J. European Cer. Soc., 8(1991)59).

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