Oxidation of americium in acidic solution

a technology of americium and acidic solution, which is applied in the direction of inorganic chemistry, process efficiency improvement, chemistry apparatus and processes, etc., can solve the problems of slow oxidation kinetics, low solubility, and ozone being not a suitable oxidant for oxidizing
US20150337412A1Inactive Publication Date: 2015-11-26TRIAD NAT SECURITY LLC
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
TRIAD NAT SECURITY LLC
Publication Date
2015-11-26
Estimated Expiration
Not applicable · inactive patent
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Abstract

A process is for oxidizing americium(III) to americium(VI) includes providing a aqueous acidic composition comprising americium(III) and a mineral acid and exposing the composition to ozone and silver ion under conditions suitable for oxidation of the americium(III) to americium(VI). Nitric, acid is a suitable mineral acid for the process. Extraction of the americium from the silver is possible using organic phosphonate extractant.
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Description

PRIORITY CLAIM TO A RELATED APPLICATION

[0001] This application claims the benefit of copending U.S. Provisional Patent Application No. 62 / 000,868 entitled “Oxidation of Americium in Acidic Solution,” filed May 20, 2014, which is incorporated by reference herein.STATEMENT REGARDING FEDERAL RIGHTS

[0002] This invention was made with government support under Contract No. DE-AC52-06NA25396 awarded by the U.S. Department of Energy. The government has certain rights to in the invention.FIELD OF THE INVENTION

[0003] The present invention relates generally to actinide separation and more particularly to oxidation of americium in acidic solution to facilitate a separation of americium from other elements including but not limited to fission products and other actinides.BACKGROUND OF THE INVENTION

[0004] The presence of long-lived radioisotopes of americium (“Am”) and radio-decay of particular isotopes of Am (such as Am-241 to the long-lived Np-237 and Am-243 to Pu-239) contribute to the thermal loa...

Claims

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