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.

Date of Patent:
Oct. 31, 2006

Filed:

Mar. 25, 2003
Applicants:

Chien M. Wai, Moscow, ID (US);

Youichi Enokida, Nagoya, JP;

Inventors:

Chien M. Wai, Moscow, ID (US);

Youichi Enokida, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/02 (2006.01); B01J 8/00 (2006.01); B01J 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Improved methods for the extraction or dissolution of metals, metalloids or their oxides, especially lanthanides, actinides, uranium or their oxides, into supercritical solvents containing an extractant are disclosed. The disclosed embodiments specifically include enhancing the extraction or dissolution efficiency with ultrasound. The present methods allow the direct, efficient dissolution of UOor other uranium oxides without generating any waste stream or by-products.


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