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.

Date of Patent:
Dec. 08, 2015

Filed:

Apr. 27, 2015
Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Makoto Miyahara, Nagoya, JP;

Makiko Ichikawa, Nagoya, JP;

Shinji Nakamura, Nagoya, JP;

Ryujiro Nagasaka, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 38/02 (2006.01); B01J 29/90 (2006.01); B01D 65/02 (2006.01); B01D 71/02 (2006.01); B01D 69/12 (2006.01); B01J 35/04 (2006.01);
U.S. Cl.
CPC ...
B01J 29/90 (2013.01); B01D 65/02 (2013.01); B01D 69/12 (2013.01); B01D 71/028 (2013.01); B01J 35/04 (2013.01); B01J 38/02 (2013.01); B01D 2321/32 (2013.01); B01D 2325/12 (2013.01);
Abstract

Provided is a simple method for regenerating a zeolite membrane which has been exposed to water. The method for regenerating a zeolite membrane is a method for regenerating a zeolite membrane which is formed on a ceramic porous body and subjected to removal treatment of structure directing agent. Heating is performed at a regeneration temperature at which the difference in ratio of thermal expansion amount between the ceramic porous body and the zeolite membrane is 0.3% or less when 40° C. is set as datum. The regeneration temperature is preferably a temperature not exceeding the oxidative pyrolysis temperature of the structure directing agent used in the formation of the zeolite membrane.


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