Ceramic membranes having macroscopic channels

Patent · Mon Jan 01 04:00:00 EST 1996

OSTI ID:870591

Anderson, Marc A ^[1]; Peterson, Reid A ^[1]

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1. Madison, WI

Methods have been developed to make porous ceramic membranes having macroscopic channels therethrough. The novel membranes are formed by temporarily supporting the sol-gel membrane precursor on an organic support which is ultimately removed from the interior of the membrane, preferably by pyrolysis or by chemical destruction. The organic support may also include an inorganic metal portion that remains on destruction of the organic portion, providing structural support and/or chemical reactivity to the membrane. The channels formed when the organic support is destroyed provide the ability to withdraw small catalytic products or size-separated molecules from the metal oxide membrane. In addition, the channel-containing membranes retain all of the advantages of existing porous ceramic membranes.

• Research Organization: University of Wisconsin
• Sponsoring Organization: United States Department of Energy
• DOE Contract Number: AS07-86ID12626; FG07-91ID13062
• Assignee: Wisconsin Alumni Research Foundation (Madison, WI)
• Patent Number(s): US 5552351
• Application Number: 08/413314
• OSTI ID: 870591
• Country of Publication: United States
• Language: English

Related Subjects

/501/428/
ability
addition
advantages
catalytic
ceramic
ceramic membrane
ceramic membranes
channel-containing
channels
channels formed
chemical
chemical reactivity
destroyed
destruction
developed
existing
formed
inorganic
inorganic metal
interior
macroscopic
macroscopic channels
membrane
membranes
metal
metal oxide
metal portion
methods
molecules
novel
novel membrane
organic
organic metal
organic portion
organic support
oxide
oxide membrane
porous
porous ceramic
portion
precursor
preferably
products
provide
providing
providing structural
pyrolysis
reactivity
remains
removed
retain
size-separated
sol-gel
structural
structural support
support
supporting
temporarily
temporarily support
therethrough
ultimately
withdraw