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:
Feb. 02, 2010
Filed:
Sep. 03, 2004
Kew-ho Lee, Daejeon, KR;
Yoon-kyu Lee, Daejeon, KR;
Dong-wook Lee, Daegu, KR;
Bong-kuk Sea, Daejeon, KR;
Kew-Ho Lee, Daejeon, KR;
Yoon-Kyu Lee, Daejeon, KR;
Dong-Wook Lee, Daegu, KR;
Bong-Kuk Sea, Daejeon, KR;
Korea Research Institute of Chemical Technology, Daejeon, KR;
Abstract
The present invention relates to a titania composite membrane for separating water/alcohol mixtures and a method of preparation thereof, and more particularly to the titania composite membrane and the method of preparation thereof, wherein a surface of a porous support is modified with silica xerogel and γ-alumina sol and titania sol is coated on the modified surface to form a titania surface layer and then the obtained titania surface layer is dried and calcined to optimize performance of separation and promote thermal stability. The titania composite membrane of the present invention has excellent properties such as thermal stability, mechanical strength and good perm-selectivity for water molecule in water/alcohol mixtures due to the hydrophilic property of the titania surface layer, thus being applicable to the membrane for separating water/alcohol mixtures.