公开(公告)号：US06270737B1

公开(公告)日：2001-08-07

申请号：US09518816

申请日：2000-03-03

申请人： Boris N. Zaitsev ,  Vyacheslav M. Esimantovskiy ,  Leonard N. Lazarev ,  Evgeniy G. Dzekun ,  Valeriy N. Romanovskiy ,  Terry A. Todd ,  Ken N. Brewer ,  Ronald S. Herbst ,  Jack D. Law

发明人： Boris N. Zaitsev ,  Vyacheslav M. Esimantovskiy ,  Leonard N. Lazarev ,  Evgeniy G. Dzekun ,  Valeriy N. Romanovskiy ,  Terry A. Todd ,  Ken N. Brewer ,  Ronald S. Herbst ,  Jack D. Law

IPC分类号： C22B6002

CPC分类号： C22B3/004 ,  C22B26/00 ,  G21C19/46 ,  Y02P10/234 ,  Y02W30/883

摘要： Cesium and strontium are extracted from aqueous acidic radioactive waste containing rare earth elements, technetium and actinides, by contacting the waste with a composition of a complex organoboron compound and polyethylene glycol in an organofluorine diluent mixture. In a preferred embodiment the complex organoboron compound is chlorinated cobalt dicarbollide, the polyethylene glycol has the formula RC6H4(OCH2CH2)nOH, and the organofluorine diluent is a mixture of bis-tetrafluoropropyl ether of diethylene glycol with at least one of bis-tetrafluoropropyl ether of ethylene glycol and bis-tetrafluoropropyl formal. The rare earths, technetium and the actinides (especially uranium, plutonium and americium), are extracted from the aqueous phase using a phosphine oxide in a hydrocarbon diluent, and reextracted from the resulting organic phase into an aqueous phase by using a suitable strip reagent.

摘要翻译： 通过使废物与有机氟稀释剂混合物中的复合有机硼化合物和聚乙二醇的组合物接触，从含有稀土元素，锝和锕系的含水酸性放射性废物中提取铯和锶。 在优选的实施方案中，复合有机硼化合物是二氯化钴二溴化物，聚乙二醇具有式RC6H4（OCH2CH2）nOH，有机氟稀释剂是二甘醇的双 - 四氟丙醚与至少一种双 - 四氟丙醚 乙二醇和双 - 四氟丙基甲缩醛。 使用烃稀释剂中的氧化膦从水相中提取稀土，锝和锕系元素（特别是铀，钚和ium），并通过使用合适的剥离试剂将所得有机相再萃取到水相中。

公开(公告)号：US06468445B2

公开(公告)日：2002-10-22

申请号：US09845110

申请日：2001-04-27

申请人： Valeriy Nicholiavich Romanovskiy ,  Igor V. Smirnov ,  Vasiliy A. Babain ,  Terry A. Todd ,  Ken N. Brewer

发明人： Valeriy Nicholiavich Romanovskiy ,  Igor V. Smirnov ,  Vasiliy A. Babain ,  Terry A. Todd ,  Ken N. Brewer

IPC分类号： B01D1100

CPC分类号： C01G56/001 ,  C22B3/004 ,  G21C19/46 ,  G21F9/125 ,  Y02P10/234 ,  Y02W30/883 ,  Y10S423/14

摘要： The present invention relates to solvents, and methods, for selectively extracting and recovering radionuclides, especially cesium and strontium, rare earths and actinides from liquid radioactive wastes. More specifically, the invention relates to extracting agent solvent compositions comprising complex organoboron compounds, substituted polyethylene glycols, and neutral organophosphorus compounds in a diluent. The preferred solvent comprises a chlorinated cobalt dicarbollide, diphenyl-dibutylmethylenecarbamoylphosphine oxide, PEG-400, and a diluent of phenylpolyfluoroalkyl sulfone. The invention also provides a method of using the invention extracting agents to recover cesium, strontium, rare earths and actinides from liquid radioactive waste.

摘要翻译： 本发明涉及用于从液体放射性废物中选择性提取和回收放射性核素，特别是铯和锶，稀土和锕系元素的溶剂和方法。 更具体地，本发明涉及在稀释剂中包含复合有机硼化合物，取代的聚乙二醇和中性有机磷化合物的萃取剂溶剂组合物。 优选的溶剂包括二氯化钴二溴化物，二苯基 - 二丁基亚甲基氨基甲酰基氧化膦，PEG-400和苯基多氟烷基砜的稀释剂。 本发明还提供了使用本发明提取剂从液体放射性废物中回收铯，锶，稀土和锕系元素的方法。

公开(公告)号：US06258333B1

公开(公告)日：2001-07-10

申请号：US09414446

申请日：1999-10-07

申请人： Valeriy Nicholiavich Romanovskiy ,  Igor V. Smirnov ,  Vasiliy A. Babain ,  Terry A. Todd ,  Ken N. Brewer

发明人： Valeriy Nicholiavich Romanovskiy ,  Igor V. Smirnov ,  Vasiliy A. Babain ,  Terry A. Todd ,  Ken N. Brewer

IPC分类号： B01D1100

CPC分类号： C01G56/001 ,  C22B3/004 ,  G21C19/46 ,  G21F9/125 ,  Y02P10/234 ,  Y02W30/883 ,  Y10S423/14

摘要： The present invention relates to solvents, and methods, for selectively extracting and recovering radionuclides, especially cesium and strontium, rare earths and actinides from liquid radioactive wastes. More specifically, the invention relates to extracting agent solvent compositions comprising complex organoboron compounds, substituted polyethylene glycols, and neutral organophosphorus compounds in a diluent. The preferred solvent comprises a chlorinated cobalt dicarbollide, diphenyl-dibutylmethylenecarbamoylphosphine oxide, PEG-400, and a diluent of phenylpolyfluoroalkyl sulfone. The invention also provides a method of using the invention extracting agents to recover cesium, strontium, rare earths and actinides from liquid radioactive waste.

摘要翻译： 本发明涉及用于从液体放射性废物中选择性提取和回收放射性核素，特别是铯和锶，稀土和锕系元素的溶剂和方法。 更具体地，本发明涉及在稀释剂中包含复合有机硼化合物，取代的聚乙二醇和中性有机磷化合物的萃取剂溶剂组合物。 优选的溶剂包括二氯化钴二溴化物，二苯基 - 二丁基亚甲基氨基甲酰基氧化膦，PEG-400和苯基多氟烷基砜的稀释剂。 本发明还提供了使用本发明提取剂从液体放射性废物中回收铯，锶，稀土和锕系元素的方法。

公开(公告)号：US5288434A

公开(公告)日：1994-02-22

申请号：US933144

申请日：1992-08-21

申请人： Ken N. Brewer ,  James A. Murphy

发明人： Ken N. Brewer ,  James A. Murphy

IPC分类号： B09B3/00 ,  G21F9/30 ,  G21F9/00

CPC分类号： B09B3/00 ,  G21F9/30

摘要： A process for dissolution of spent high efficiency particulate air (HEPA) filters and then combining the complexed filter solution with other radioactive wastes prior to calcining the mixed and blended waste feed. The process is an alternate to a prior method of acid leaching the spent filters which is an inefficient method of treating spent HEPA filters for disposal.

摘要翻译： 在废弃的高效颗粒空气（HEPA）过滤器的溶解过程中，然后在混合和混合的废料进料煅烧之前，将复杂的过滤溶液与其他放射性废物混合。 该过程是先前浸出过滤器的先前方法的替代方案，其是处理用过的HEPA过滤器以进行处理的低效方法。