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:
Oct. 16, 2012
Filed:
Apr. 01, 2011
Applicants:
Jens Olschimke, Hannover, DE;
Carsten Brosch, Seelze, DE;
Andreas Grossmann, Sehnde, DE;
Inventors:
Assignee:
Solvay Fluor GmbH, Hannover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/302 (2006.01); H01L 21/461 (2006.01);
U.S. Cl.
CPC ...
Abstract
Gas mixtures which comprise acids like HF, HCl or HBr and other constituents, especially gas mixtures which comprise or consist of carboxylic acid fluorides, C(O)For phosphorous pentafluoride and HCl and optionally HF, can be separated by ionic liquids. The process is performed reversibly. Ionic liquids are applied the anion of which corresponds to a stronger acid than the acid to be removed. Highly purified products, for example, highly purified carbonyl fluoride can be obtained.