METHOD FOR RECOVERING CATALYST MATERIAL, CATALYST MATERIAL RECOVERED BY SAID RECOVERING METHOD, METHOD FOR RECOVERING SUBSTRATE, SUBSTRATE RECOVERED BY SAID RECOVERING METHOD

Title:

METHOD FOR RECOVERING CATALYST MATERIAL, CATALYST MATERIAL RECOVERED BY SAID RECOVERING METHOD, METHOD FOR RECOVERING SUBSTRATE, SUBSTRATE RECOVERED BY SAID RECOVERING METHOD

Document Type and Number:

WIPO Patent Application WO/2004/080596

Kind Code:

A1

Abstract:

A method for recovering a catalyst material from a catalyst structure having a substrate and, formed on at least a part of the surface thereof, a catalyst layer, characterized in that it comprises (a) a step of forming an overcoat layer on the surface of said catalyst layer, (b) a step of placing the catalyst structure having the overcoat layer thereon under conditions wherein the expansion or shrinkage property of said overcoat layer differs from that of said substrate, and in that said catalyst layer is released from said substrate due to the difference of the expansion or shrinkage property caused by said conditions.

Inventors:

WAKITA HIDENOBU
TAGUCHI KIYOSHI
FUJIHARA SEIJI
UKAI KUNIHIRO

Application Number:

PCT/JP2004/003004

Publication Date:

September 23, 2004

Filing Date:

March 09, 2004

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
WAKITA HIDENOBU
TAGUCHI KIYOSHI
FUJIHARA SEIJI
UKAI KUNIHIRO

International Classes:

B01J38/00; C22B7/00; C22B11/02; B01J23/96; (IPC1-7): B01J38/00

Foreign References:

JPH11158563A	1999-06-15
JP2002186862A	2002-07-02
JPH1128367A	1999-02-02

Other References: