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:
Jun. 18, 1996
Filed:
Dec. 15, 1994
Applicant:
Inventor:
Ronald O Noe, Hopkins, SC (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75398 ; 423260 ; 423261 ;
Abstract
Finely powdered urania scrap materials are subjected to sintering conditions (greater than 1600.degree. C.) in a hydrogen atmosphere for about 4 to 8 hours in order to remove impurities (such as Si, Fe, Ni, Sn, Cu, Na and Pb). The process upgrades the quality of the urania powder to where it can be used directly as clean scrap makeup, thereby avoiding expensive decontamination and recovery steps like solvent extraction. The novelty of the process is in the use of sintering conditions (greater than 1600.degree. C.) in a hydrogen atmosphere on finely divided powder to decontaminate urania materials.