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:
Mar. 10, 2020
Filed:
Jul. 11, 2016
Applicant:
Wacker Chemie Ag, Munich, DE;
Inventors:
Josef Fuerst, Mehring, DE;
Nils Becker, Burghausen, DE;
Dieter Duschl, Burgkirchen, DE;
Johann Schuster, Emmerting, DE;
Assignee:
WACKER CHEMIE AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 71/70 (2006.01); B01D 71/78 (2006.01); C07F 7/20 (2006.01); B01D 53/00 (2006.01); C08L 83/04 (2006.01);
U.S. Cl.
CPC ...
B01D 53/226 (2013.01); B01D 53/22 (2013.01); B01D 53/228 (2013.01); B01D 53/229 (2013.01); B01D 71/70 (2013.01); B01D 71/78 (2013.01); C07F 7/20 (2013.01); B01D 53/002 (2013.01); B01D 2257/553 (2013.01); B01D 2257/556 (2013.01); C08L 83/04 (2013.01);
Abstract
Organosilicon compounds in a process exhaust stream from silicone production are removed by contacting the exhaust stream with a semipermeable silicone membrane which is selectively permeable to organosilicon compounds and oxygen relative to nitrogen. The pressure on the permeate side of the membrane is preferably less than the pressure on the retentate side.