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:
Feb. 17, 2004
Filed:
Feb. 21, 2001
Applicant:
Inventor:
Masahiko Matsukata, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 3/900 ;
U.S. Cl.
CPC ...
B01D 3/900 ;
Abstract
A mordenite (MOR) zeolite membrane is formed on a porous substrate and has crystals that are substantially oriented in a specific crystalline direction. A method for producing the mordenite (MOR) zeolite membrane includes the steps of: immersing a porous substrate in a gel of raw materials which contains zeolite constitution elements in molar ratios of 40-400 of SiO /Al O , 10-120 of H O/Na O, and 10-40 of H O/SiO ; and subjecting the gel in the presence of the porous substrate to hydrothermal synthesis at 150° C. or more to crystallize the MOR zeolite constitution elements and form a MOR zeolite membrane on the porous substrate.