ZEOLITE SEPARATION MEMBRANE, PROCESS FOR PRODUCING THE SAME, AND BINDER

Title:

ZEOLITE SEPARATION MEMBRANE, PROCESS FOR PRODUCING THE SAME, AND BINDER

Document Type and Number:

WIPO Patent Application WO/2010/038281

Kind Code:

A1

Abstract:

A separation membrane characterized by comprising: a porous tube comprising alumina as the main component; a connection member disposed in a position for connection to the tube; a binder with which the connection member has been bonded to the tube and which is made of ceramic oxides comprising 17-48 wt.% SiO2, 2-8 wt.% Al2O3, 24-60 wt.% BaO, and 0.5-5 wt.% ZnO as essential ingredients and containing at least one of La2O3, CaO, and SrO; and a thin zeolite layer formed on the surface of the porous tube. Before the zeolite layer is formed, the connection member is bonded to the porous tube. Thus, the binder can have a melting temperature exceeding the limit of up to 600°C, which is the heat-resistance limit to zeolite. This widens the choice of ceramic oxide compositions, e.g., glass compositions, to be used in the binder (there are no limitations on glass softening temperature).

Inventors:

YANO KAZUHIRO (JP)
TAKAKI YOSHINOBU (JP)

Application Number:

PCT/JP2008/067797

Publication Date:

April 08, 2010

Filing Date:

October 01, 2008

Export Citation:

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Assignee:

HITACHI SHIPBUILDING ENG CO (JP)
YANO KAZUHIRO (JP)
TAKAKI YOSHINOBU (JP)

International Classes:

B01D63/00; B01D71/02

Foreign References:

JP2006088079A	2006-04-06
JPH10180060A	1998-07-07
JP2005313156A	2005-11-10
JP2006263498A	2006-10-05
JPH08134434A	1996-05-28
JP2005058950A	2005-03-10
JPS586715B2	1983-02-05
JP2006088079A	2006-04-06
JPH10180060A	1998-07-07
JP2005313156A	2005-11-10
JP2006263498A	2006-10-05

Other References: