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:
Nov. 20, 2001
Filed:
Jun. 22, 1999
Bartley B. Ebbinghaus, Livermore, CA (US);
Richard A. Van Konynenburg, Livermore, CA (US);
Eric R. Vance, Kirrawee, AU;
Martin W. Stewart, Barden Ridge, AU;
Philip A. Walls, Cronulla, AU;
William Allen Brummond, Livermore, CA (US);
Guy A. Armantrout, Livermore, CA (US);
Connie Cicero Herman, Pleasanton, CA (US);
Beverly F. Hobson, Livermore, CA (US);
David Thomas Herman, Pleasanton, CA (US);
Paul G. Curtis, Tracy, CA (US);
Joseph Farmer, Tracy, CA (US);
The United States of America as represented by the United States Department of Energy, Washington, DC (US);
Abstract
Disclosed is a process for making a ceramic composition for the immobilization of actinides, particularly uranium and plutonium. The ceramic is a titanate material comprising pyrochlore, brannerite and rutile. The process comprises oxidizing the actinides, milling the oxides to a powder, blending them with ceramic precursors, cold pressing the blend and sintering the pressed material.