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:
Nov. 06, 2012

Filed:

Mar. 07, 2008
Applicants:

John L. Falconer, Boulder, CO (US);

Moises A. Carreon, Louisville, KY (US);

Shiguang LI, Mount Prospect, IL (US);

Richard D. Noble, Boulder, CO (US);

Inventors:

John L. Falconer, Boulder, CO (US);

Moises A. Carreon, Louisville, KY (US);

Shiguang Li, Mount Prospect, IL (US);

Richard D. Noble, Boulder, CO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/00 (2006.01); B01D 29/46 (2006.01); B01D 39/06 (2006.01); B29C 65/00 (2006.01); B29C 44/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

SAPO-34 membranes and methods for their preparation and use are described. The SAPO-34 membranes are prepared by contacting at least one surface of a porous membrane support with a synthesis gel comprising a first and a second templating agent. SAPO-34 crystals having a narrow size distribution were applied to the surface of the support prior to synthesis. A layer of SAPO-34 crystals is formed on at least one surface of the support. SAPO-34 membranes of the invention can have improved selectivity for certain gas mixtures, including mixtures of carbon dioxide and methane.


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