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:
Feb. 17, 2009
Filed:
Apr. 04, 2005
Masaki Ozawa, Higashi-Ibaraki-gun, JP;
Vasily Alexandrovich Babain, St-Petersburg, RU;
Yury Stepanovich Fedorov, St-Petersburg, RU;
Andey Yurievich Shadrin, St-Petersburg, RU;
Valery Nikolaevich Romanovsky, St-Petersburg, RU;
Igor Valentinovich Smirnov, St-Petersburg, RU;
Boris Yakovlevich Zilberman, St-Petersburg, RU;
Masaki Ozawa, Higashi-Ibaraki-gun, JP;
Vasily Alexandrovich Babain, St-Petersburg, RU;
Yury Stepanovich Fedorov, St-Petersburg, RU;
Andey Yurievich Shadrin, St-Petersburg, RU;
Valery Nikolaevich Romanovsky, St-Petersburg, RU;
Igor Valentinovich Smirnov, St-Petersburg, RU;
Boris Yakovlevich Zilberman, St-Petersburg, RU;
Japan Nuclear Cycle Development Institute, Ibaraki-ken, JP;
Abstract
Extraction mixture capable of recovering actinide elements such as U, Pu and transplutonium elements from radioactive liquid waste in reprocessing of spent nuclear fuel. One embodiment of the extraction mixture includes a solution of bidentate organophosphorus extractant, dihexyl-N, N-diethylcarbamoyl phosphonate in a polar diluent, wherein bis-tetrafluoropropyl ether of diethylene glycol is used as the polar diluent at the following ratio of components: 0.1-1.2 M/L of bidentate extractant and the rest of diluent. Another embodiment of the extraction mixture includes a solution of bidentate organophosphorus extractant, phenyloctyl-N,N-diisobutylcarbamoylphosphine oxide in a polar diluent, wherein a mixture of metanitrobenzotrifluoride with trialkylphosphate is used as the polar diluent at the following ratio of components: 0.1-1.2 M/L of bidentate extractant, 0.3-1.1 M/L of TBP, and the rest of MNBTF.