The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 1992
Filed:
Jan. 02, 1992
Antonij J Burggraaf, Enschede, NL;
Yue-Sheng Lin, Cincinnati, OH (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
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.