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:
Oct. 31, 2000
Filed:
Dec. 06, 1996
Applicant:
Inventors:
Martine Anstett, Rueil Malmaison, FR;
Ronan Le Dred, Riedisher, FR;
Jean-Louis Guth, Mulhouse, FR;
Alain Methivier, Rueil Malmaison, FR;
Christian Streicher, Rueil Malmaison, FR;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502-4 ; 502 60 ; 502 64 ; 502 69 ; 95902 ;
Abstract
A process for the production of a controlled supported zeolite membrane comprises: (a) forming a gel which is principally localised at the surface of a porous support by bringing it into contact, in succession, with two immiscible liquids which contain the agents necessary for formation of said gel, then (b) crystallising the zeolite from said gel and finally (c) eliminating the residual agents. The supported zeolite membranes obtained are advantageously used in continuous gas separation processes.