Appeal No. 1998-2325
Application 08/484,114
THE INVENTION
The appellants claim a process for separating oxygen from an
oxygen containing fluid by use of a specified solid state
membrane. Claim 1 is illustrative:
1. A process for the separation of oxygen from an oxygen
containing fluid, comprising contacting said oxygen containing
fluid with at least one solid state membrane, wherein said solid
state membrane comprises
A) a structure selected from the group consisting of:
a) a fluid-impervious, electronically perovskitic
material;
b) an intimate, gas-impervious, multi-phase mixture
of an electronically-conductive phase and an oxygen ion
conductive phase; and
c) combinations thereof;
and
B) a porous coating selected from the group consisting of
metals, metal oxides and combinations thereof.
THE REFERENCES
Hazbun 4,791,079 Dec. 13, 1988
H. Iwahara et al. (Iwahara), “Mixed Conduction and Oxygen
Permeation in Sintered Oxides of a System ZrO2-Tb4O7”, 24 Adv. in
Ceramics 907-14 (1988).
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