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:
May. 04, 1993
Filed:
Aug. 13, 1991
Applicant:
Inventors:
Robert C Burk, Ottawa, CA;
Maher I Boulos, Sherbrooke, CA;
Dennis G Garratt, Saskatoon, CA;
Tadeusz W Zawidzki, Gloucester, CA;
Andrzej Huczko, Sherbrooke, CA;
Assignee:
Cameco Corporation, Saskatoon, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; C01G / ; C01G / ;
U.S. Cl.
CPC ...
423258 ; 423259 ; 423489 ; 423490 ; 423500 ; 423D / ;
Abstract
A compound MF.sub.n, where M is a metal and n is the valency of the metal and has a value between 1 and 6, is subjected to a thermal plasma at a temperature in excess of 3000 K to dissociate it into the metal and fluorine. Also present in the reactor is an added reactant that will react with the metal or the fluorine to prevent their recombination so that there is formed fluorine gas or a fluoride other than the fluoride of the metal M.