Title:
水/アルコール分離用チタニア複合膜とこれの製造方法
Document Type and Number:
Japanese Patent JP2007503995
Kind Code:
A
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 gamma-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.
Inventors:
Lee, cue-ho
Lee, Yun-kyu
Lee, Don-Wook
Sea, Bon-Cook
Lee, Yun-kyu
Lee, Don-Wook
Sea, Bon-Cook
Application Number:
JP2006526022A
Publication Date:
March 01, 2007
Filing Date:
September 03, 2004
Export Citation:
Assignee:
Korea Research Institute of Chemical Technology
International Classes:
B01D71/02; B01D61/36; B01D67/00; B01D69/10; B01D69/12; C01G23/04
Domestic Patent References:
| JPH01299607A | 1989-12-04 | |||
| JPS60156510A | 1985-08-16 | |||
| JPH01119324A | 1989-05-11 | |||
| JPS59179112A | 1984-10-11 | |||
| JPH07213877A | 1995-08-15 | |||
| JP2000000444A | 2000-01-07 | |||
| JPH07277853A | 1995-10-24 | |||
| JPH01304006A | 1989-12-07 | |||
| JPH04349926A | 1992-12-04 | |||
| JPH1052629A | 1998-02-24 |
Attorney, Agent or Firm:
Yuichi Yamada
Masakazu Noda
Masakazu Noda
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