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Title:
ALUMINA COMPOSITE SEPARATION MEMBRANE, AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2011255303
Kind Code:
A
Abstract:

To provide an alumina composite separation membrane enhanced in the separation capacity of mixed gas and a liquid and excellent in heat resistance, water resistance, acid resistance and alkali resistance.

The alumina composite separation membrane useful for liquid separation and gas separation is manufactured by coating a porous inorganic support with aqueous sol containing fibrous alumina particles with an average aspect ratio of 30-5,000, drying the formed coating film at 5-100°C to form an alumina hydrate sol coating layer wherein the fibrous alumina particles are parallelly arranged in one direction and superposed one upon another and applying heat treatment of 130-1,000°C to the alumina hydrate sol coating layer to form a fibrous alumina porous membrane layer wherein mutually communicating pores having a specific shape are formed between the fibrous alumina particles.


Inventors:
NAGAI NAOFUMI
MIZUKAMI FUJIO
HASEGAWA YASUHISA
Application Number:
JP2010131392A
Publication Date:
December 22, 2011
Filing Date:
June 08, 2010
Export Citation:
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Assignee:
KAWAKEN FINE CHEMICALS CO
AIST
International Classes:
B01D71/02; B01D53/22; B01D61/36; B01D69/12; C02F1/44; C04B41/85; C01F7/02
Domestic Patent References:
JPH09142964A1997-06-03
JP2002248326A2002-09-03
JP2005177535A2005-07-07
Foreign References:
WO2010050225A12010-05-06
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Kazuyuki Nishidate
Tetsuji Koga
Nagasaka Tomoyasu
Satoshi Deno



 
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