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:
Sep. 16, 2014
Filed:
Sep. 21, 2006
Applicants:
James Robert Smith, Taunton, GB;
Andrew David Wright, London, GB;
Inventors:
James Robert Smith, Taunton, GB;
Peter Leslie Timms, Bristol, GB;
Assignee:
Edwards Limited, Crawley, West Sussex, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/68 (2006.01);
U.S. Cl.
CPC ...
B01D 53/685 (2013.01);
Abstract
A method is described for treating a gas stream comprising fluorine (F) gas. In a preferred embodiment, the method comprises adding water vapor to a gas stream and conveying the gas stream and water vapor to a reaction chamber containing a heated bed of material to react with Fto form an inorganic fluoride while inhibiting formation of CFwithin the reaction chamber, and at least partially evacuating the reaction chamber so that the gas stream is conveyed to and from the reaction chamber at sub-atmospheric pressure.