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:
Apr. 22, 2008
Filed:
Apr. 05, 2004
Applicants:
Patricio S. Herrera, Calgary, CA;
Xianshe Feng, Waterloo, CA;
John Donald Payzant, Edmonton, CA;
Jeong-hoon Kim, Taejon, KR;
Inventors:
Patricio S. Herrera, Calgary, CA;
Xianshe Feng, Waterloo, CA;
John Donald Payzant, Edmonton, CA;
Jeong-Hoon Kim, Taejon, KR;
Assignee:
Monteco Ltd., , CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 7/00 (2006.01); C07C 7/144 (2006.01); B01D 53/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Chitosan membranes chelated with silver or cuprous material may be used to separate olefins from a mixture of olefins and paraffins. The feed stream is humidified, demisted, treated to remove sulfur compounds and passed to a cell having a chitosan membrane containing chelated silver or cuprous compounds. The process has a reasonable flux rate and is operable at reasonable temperatures and pressures. The process could be used in an olefin separation train.