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1.发明授权Process for the determination of uranium (VI) or dialkyl dithiophosphoric acid present in an organic solvent 失效用于测定存在于有机溶剂中的铀（VI）或二烷基二硫代磷酸的方法
公开(公告)号：US4349350A
公开(公告)日：1982-09-14
申请号：US242655
申请日：1981-03-11
申请人： Richard Fitoussi , Sylvie Lours , Claude Musikas
发明人： Richard Fitoussi , Sylvie Lours , Claude Musikas
CPC分类号： G01N31/22 , Y10T436/163333
摘要： The invention relates to a process for the determination of uranium (VI) or dialkyl dithiophosphoric acid present in an organic solvent.In this process, a dialkyl dithiophosphoric acid or a uranium (VI) salt is added to the organic solvent so as to convert all the uranium or dialkyl dithiophosphoric acid present in said solvent into a mixed uranium (VI) - dialkyl dithiophosphoric acid-organophosphorus compound complex. The optical density of the solvent containing the complex in solution is measured so as to determine the concentration of this solvent in the complex, together with its uranium dialkyl dithiophosphoric acid content.Application to the determination of traces of uranium in tributylphosphate obtained from the reprocessing of irradiated fuels.
摘要翻译： 本发明涉及一种测定有机溶剂中存在的铀（Ⅵ）或二烷基二硫代磷酸的方法。 在该方法中，向有机溶剂中加入二烷基二硫代磷酸或铀（VI）盐，以将所述溶剂中存在的所有铀或二烷基二硫代磷酸转化成混合的铀（Ⅵ） - 二烷基二硫代磷酸 - 有机磷化合物 复杂。 测量溶液中含有络合物的溶剂的光密度，以便确定络合物中该溶剂的浓度及其二烷基二硫代磷酸的含量。 用于测定从辐照燃料后处理中获得的磷酸三丁酯中痕量的铀。
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公开(公告)号：US4282112A
公开(公告)日：1981-08-04
申请号：US116588
申请日：1980-01-29
申请人： Richard Fitoussi , Sylvie Lours , Claude Musikas
发明人： Richard Fitoussi , Sylvie Lours , Claude Musikas
CPC分类号： C01G55/001 , C22B3/0095 , G21C19/46 , G21F9/007 , Y02P10/234 , Y02W30/883 , Y10S423/14
摘要： Process for the recovery of the ruthenium present in an aqueous nitric solution, wherein the ruthenium is extracted in an organic solvent by contacting the nitric solution with an organic phase comprising an organophosphorous compound having at least one electron donor sulphur atom in the presence of a compound able to displace NO.sup.+ ions of the ruthenium complexes present in the nitric solution. Application to the recovery of ruthenium contained in a nitric solution obtained by dissolving irradiated fuel elements.
摘要翻译： 用于回收存在于硝酸水溶液中的钌的方法，其中通过在化合物存在下使硝酸溶液与包含具有至少一个电子给体硫原子的有机磷化合物的有机相接触，在有机溶剂中萃取钌 能够置换存在于硝酸溶液中的钌络合物的NO +离子。 适用于通过溶解照射的燃料元素而获得的硝酸溶液中所含的钌的回收。
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