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. 26, 2001
Filed:
Nov. 30, 1998
Applicant:
Inventors:
Kun-Woo Song, Daejeon-Si, KR;
Keon-Sik Kim, Daejeon-Si, KR;
Youn-Ho Jung, Daejeon-Si, KR;
Myung-Seung Yang, Daejeon-Si, KR;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G21C 2/100 ;
U.S. Cl.
CPC ...
G21C 2/100 ;
Abstract
A method of manufacturing new UO,-based fuel pellets by recycling irradiated UO,-based fuel pellets. Irradiated UO,-based fuel pellets are oxidized so as to make U,O,-based powder, and then the U,O,-based powder is mixed with an additive which contains at least one oxide of an element selected from the group consisting of niobium, titanium, vanadium, aluminum, magnesium, chromium, silicon and lithium. Green pellets are formed from the mixed powder, and then sintered, preferably at 1500° C. or higher, in a reducing gas atmosphere to produce UO,-based fuel pellets with high densities.