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:
Apr. 23, 1991
Filed:
Jul. 11, 1989
Applicant:
Inventor:
Graham Hodgson, Blackpool, GB;
Assignee:
British Nuclear Fuels plc, Warrington, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21C / ; C01G / ;
U.S. Cl.
CPC ...
264-05 ; 423261 ; 501152 ;
Abstract
Ceramic uranium dioxide is produced from uranium metal by steam oxidation of the metal, followed by oxidation in air to produce U.sub.3 O.sub.8, and subsequent reduction in hydrogen of the U.sub.3 O.sub.8 to produce UO.sub.2. The steam environment may be between 250.degree. C. and 500.degree. C., the oxygen-containing environment at 700.degree. C. or below, and the reducing environment at 600.degree. C. or below.