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. 22, 2011
Filed:
Jan. 06, 2009
Applicants:
Jerzy W. Jurewicz, Sherbrooke, CA;
Jiayin Guo, Sherbrooke, CA;
Inventors:
Jerzy W. Jurewicz, Sherbrooke, CA;
Jiayin Guo, Sherbrooke, CA;
Assignee:
Tekna Plasma Systems Inc., Sherbrooke, Quebec, unknown;
Primary Examiner:
Int. Cl.
CPC ...
B22F 9/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The process for the synthesis of rhenium powders comprises the injection of ammonium perrhenate powder through a carrier gas in a plasma torch of a plasma reactor operated using a mixture including hydrogen as the plasma gas, yielding metallic rhenium under the following chemical reaction:2NHReO+4H→2Re+N↑+8HO↑.The reactor is provided with a quench zone for cooling the metallic rhenium so as to yield rhenium nano and micro powders.