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:
May. 31, 2011
Filed:
Jul. 27, 2006
Hiroyuki Chida, Tokyo, JP;
Takehito Mizuno, Tokyo, JP;
Hiroyuki Chida, Tokyo, JP;
Takehito Mizuno, Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
The present invention provides a process for production of a zeolite separation membrane with satisfactory separation performance. The process for production of a zeolite separation membrane according to the invention is comprising: a seed crystal-attaching step in which: a sealed body (), which is obtained by sealing both ends of a cylindrical porous body () with sealing members (), is immersed from the sealing member () end into a suspension () containing zeolite seed crystals; the suspension () is allowed to permeate from the exterior of the porous body () to the interior thereof; the zeolite seed crystals are thereby attached to the porous body (); and a seed crystal-attached porous body is obtained; and a zeolite membrane-forming step in which: the seed crystal-attached porous body is contacted with a reaction solution containing the raw material of a zeolite membrane; the zeolite membrane is formed on the porous body (); and a zeolite separation membrane is obtained.