Metal oxide membranes for gas separation
December 7, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2627933 3892580 Method for preparation of deuterium by isotope separation Solid state filter for gas sensors Process for increasing gasoline yield and quality during catalytic cracking of high metals content charge stocks using an alumina-aluminum phosphate-silica-zeolite catalyst Oxygen gas permselective membrane Porous ceramic thin film and process for preparing the same Process for producing finely divided powdery metal oxide compositions Non-porous hydrogen diffusion membrane and utilization thereof Method for modifying asymmetric membranes by endo-treating InventorsAssigneeApplicationNo. 987891 filed on 12/07/1992US Classes:95/45, Selective diffusion of gases through substantially solid barrier (e.g., semipermeable membrane, etc.)96/4, APPARATUS FOR SELECTIVE DIFFUSION OF GASES (E.G., SEMIPERMEABLE MEMBRANE, ETC.)96/10Hollow fiber or cylinderExaminersPrimary: Spitzer, RobertAttorney, Agent or FirmForeign Patent References
International ClassB01D 053/22AbstractA method for permformation of a microporous ceramic membrane onto a porous support includes placing a colloidal suspension of metal oxide particles on one side of the porous support and exposing the other side of the porous support to a drying stream of gas or a reactive gas stream so that the particles are deposited on the drying side of the support as a gel. The gel so deposited can be sintered to form a supported ceramic membrane having mean pore sizes less than 30 Angstroms and useful for ultrafiltration, reverse osmosis, or gas separation.Other References
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