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71. 发明授权

US3966873A Uranium complex recycling method of purifying uranium liquors 失效
标题翻译：铀浓缩铀复合物回收方法
公开(公告)号：US3966873A
公开(公告)日：1976-06-29
申请号：US411886
申请日：1973-11-01
申请人： Leonard Elikan , Ward L. Lyon , Parameshwaran S. Sundar
发明人： Leonard Elikan , Ward L. Lyon , Parameshwaran S. Sundar
IPC分类号： B01D11/04 , C22B3/00 , C22B3/20 , C22B60/02 , C01G43/00 , C01G43/02
CPC分类号： C22B60/026 , Y02P10/212
摘要： Uranium is separated from contaminating cations in an aqueous liquor containing uranyl ions. The liquor is mixed with sufficient recycled uranium complex to raise the weight ratio of uranium to said cations preferably to at least about three. The liquor is then extracted with at least enough non-interfering, water-immiscible, organic solvent to theoretically extract about all of the uranium in the liquor. The oganic solvent contains a reagent which reacts with the uranyl ions to form a complex soluble in the solvent. If the aqueous liquor is acidic, the organic solvent is then scrubbed with water. The organic solvent is stripped with a solution containing at least enough ammonium carbonate to pecipitate the uranium complex. A portion of the uranium complex is recycled and the remainder can be collected and calcined to produce U.sub.3 O.sub.8 or UO.sub.2.
摘要翻译：铀与含有铀酰离子的含水液体中的污染阳离子分离。将该液体与足够的再循环铀配合物混合以提高铀与所述阳离子的重量比优选至少约3。然后用至少足够的无干扰，水不混溶的有机溶剂萃取液体，以理论上提取酒中所有的铀。有机溶剂含有与铀酰离子反应形成可溶于溶剂的络合物的试剂。如果含水液体是酸性的，则用水洗涤有机溶剂。有机溶剂用含有至少足够的碳酸铵的溶液汽提，以捣固铀配合物。铀络合物的一部分被再循环，其余部分可被收集并煅烧以产生U3O8或UO2。

72. 发明授权

US3953568A Method of simultaneous concentration and dilution of isotopes 失效
标题翻译：同时浓缩和稀释同位素的方法
公开(公告)号：US3953568A
公开(公告)日：1976-04-27
申请号：US272250
申请日：1972-07-17
申请人： Maomi Seko , Hidetake Kakihana
发明人： Maomi Seko , Hidetake Kakihana
IPC分类号： B01D59/30 , C22B60/02 , C01G43/00 , C01G53/00 , C01G57/00
CPC分类号： B01D59/30 , C22B60/0265 , Y10S423/07 , Y10S423/14
摘要： A method of simultaneously obtaining separate enriched fractions of heavier and lighter isotopes from mixtures thereof with the use of an ion exchange resin column by passing a ligand body containing this isotope mixture through the column. The isotopes, as they are passed through the column, are present in the forms of ligand-containing coordination compounds having different valence states and are followed by an eluant and form a band which travels through the column, the front and rear portions of which are respectively enriched in one of the isotopes and depleted in the other.
摘要翻译：一种通过使含有该同位素混合物的配体通过该柱而使用离子交换树脂柱同时从混合物中获得较重和较轻同位素的分离的富集部分的方法。当它们通过色谱柱时，同位素以具有不同价态的配体配位化合物的形式存在，并且随后是洗脱剂并形成行进通过柱的带，其前部和后部是分别富集了一种同位素，另一种是耗尽的。

73. 发明授权

US3935120A Anion-deficient actinide nitrate solution 失效
标题翻译：阴离子缺乏锕系硝酸盐溶液
公开(公告)号：US3935120A
公开(公告)日：1976-01-27
申请号：US365197
申请日：1973-05-30
申请人： Johannes Bastiaan Willem Kanij , Arend Jaman Noothout
发明人： Johannes Bastiaan Willem Kanij , Arend Jaman Noothout
IPC分类号： C01G43/00 , C01G56/00 , C09K3/00
CPC分类号： C01G43/006 , C01G43/00 , C01G56/004 , C01P2006/10 , C01P2006/60
摘要： The invention relates to a method for the preparation of aniondeficient actinide nitrate solutions. Anion deficient actinide nitrate solutions are used for the preparation of ceramic spherical ceramic nuclear fuel.According to the invention one or more actinide oxides selected from the group of PuO.sub.2, UO.sub.2, U.sub.3 O.sub.8, UO.sub.3 of oxides ranging between UO.sub.2 and UO.sub.3 are dissolved in one or more actinide nitrates which are molten in their water of crystallination. The obtained mixture is subsequently diluted with water.
摘要翻译：本发明涉及一种制备阴离子缺乏的锕系硝酸盐溶液的方法。阴离子不足的锕系硝酸盐溶液用于制备陶瓷球形陶瓷核燃料。

74. 发明授权

US3900551A Selective extraction of metals from acidic uranium (vi) solutions using neo-tridecano-hydroxamic acid 失效
标题翻译：从酸性尿素（VI）中选择性提取金属使用近硝酸羟基酸
公开(公告)号：US3900551A
公开(公告)日：1975-08-19
申请号：US23137772
申请日：1972-03-02
申请人： CNEN
发明人： BARDONCELLI FRANCO , GROSSI GIUSEPPE
IPC分类号： C22B3/32 , C22B60/02 , G21C19/46 , G21F9/12 , B01D11/04 , C01G43/00
CPC分类号： C22B60/026 , C22B3/0024 , G21C19/46 , G21F9/125 , Y02P10/234 , Y02W30/883
摘要： According to this invention neo-alkyl-hydroxamic acids are employed as ion-exchanging agents in processes for liquid-liquid extraction with the aim of separating, purifying dissolved metals and of converting a metal salt solution into a solution of a salt of the same metal but with different anion. In particular it is an object of this invention to provide a method whereby a molecular pure uranium solution is obtained by selective extraction from a uranium solution delivered by irradiated fuel reprocessing plants and containing plutonium, fission products and other unwanted metals, in which method neo-tridecanehydroxamic acid is employed as ion exchanger.

75. 发明授权

US3843766A Method of reprocessing nuclear fuels 失效
标题翻译：代替核燃料的方法
公开(公告)号：US3843766A
公开(公告)日：1974-10-22
申请号：US88349869
申请日：1969-12-09
申请人： US NAVY
发明人： ANDERSON R , PARLEE N
IPC分类号： G21C19/48 , C01G43/00 , G21C19/28
CPC分类号： G21C19/48 , Y02W30/884
摘要： A method of dissolving spent metal nuclear fuel in tin and precipitating out a uranium nitride, free of the fission products, by reaction of the uranium contained in the spent fuel with nitrogen. The uranium nitride is then heated and subjected to a vacuum to remove the nitrogen and leave only the pure uranium.

76. 发明授权

US3826755A Process for precipitating metal-containing compounds as gel-particles dispersed in aqueous phase 失效
标题翻译：将含金属化合物作为凝胶分散在水相中的方法
公开(公告)号：US3826755A
公开(公告)日：1974-07-30
申请号：US17099471
申请日：1971-08-11
申请人： ATOMIC ENERGY AUTHORITY UK
发明人： MC KENNA N , GRIMES J , SCOTT K
IPC分类号： B01J13/00 , B01J19/00 , C01B13/36 , C01G3/02 , C01G25/02 , C01G37/02 , C01G41/00 , C01G43/00 , C01G53/06 , C04B35/46 , C04B35/48 , C04B35/50 , C04B35/51 , C22B3/26 , H01F1/44 , C09K3/00 , G21C19/42
CPC分类号： H01F1/442 , B01J13/006 , C01B13/36 , C01G3/02 , C01G25/02 , C01G37/02 , C01G41/00 , C01G43/00 , C01G53/06 , C01P2002/32 , C01P2004/62 , C01P2006/60 , C01P2006/80 , C04B35/46 , C04B35/48 , C04B35/50 , C04B35/51 , C22B3/0097 , Y02P10/234 , Y10S502/507
摘要： TO A SALT SOLUTION OR HYDROUS SOL OF THE METAL OR METALS IS ADDED A POLYMER WHICH IS EITHER A POLYSACCHARIDE HAVING A MAIN CHAIN OF 1-6 LINKAGES, OR OF 1-4 LINKAGES WITH SUBSTITUENT GROUPS HAVING ETHER OR ESTER LINKAGES, E.G. GUAR GUM, OR A POLYALCOHOL, E.G. POLYVINYL ALCOHOL, WHICH COMPLEXES WITH THE METAL IONS PRESENT. A PRECIPITATING REAGENT, E.G. AN ALKALINE SOLUTION, IS ADDED GRADUALLY TO THW VISCOUS MIXTURE THUS FORMED WHILE AGITATING THE MIXTURE, RESULTING IN THE FORMATION OF A GEL-PARTICULATE PRECIPITATE.

77. 发明授权

US3821356A Production of high purity halides 失效
标题翻译：生产高纯度高分子
公开(公告)号：US3821356A
公开(公告)日：1974-06-28
申请号：US33948873
申请日：1973-03-08
申请人： ATOMIC ENERGY COMMISSION
发明人： BALDWIN W
IPC分类号： C01F17/00 , C01G43/04 , C01B9/00 , C01G43/00
CPC分类号： C01F17/0056 , C01G43/04
摘要： A single-step process for the conversion of lanthanide or actinide oxides by taking advantage of the halogenating and solvent capacity of selected amine hydrohalides is described. The process can be conducted in a single reaction vessel with a minimum of manipulations.

78. 发明授权

US3800023A Loading a cation exchange resin with uranyl ions 失效
标题翻译：用URANYLON装载交换树脂
公开(公告)号：US3800023A
公开(公告)日：1974-03-26
申请号：US25373172
申请日：1972-05-16
申请人： ATOMIC ENERGY COMMISSION
发明人： HAAS P
IPC分类号： C01G43/00 , B01J39/26 , C01B31/30 , C22B60/02 , C01G56/00
CPC分类号： C22B60/0265 , C01B32/928 , C01P2006/80
摘要： A method for loading ion exchange resins is described. The process comprises contacting a cation exchange resin with a uranyl nitrate salt solution which is acid deficient.
摘要翻译：描述了负载离子交换树脂的方法。该方法包括使阳离子交换树脂与酸缺乏的硝酸铀酰盐溶液接触。

79. 发明授权

US3777003A Continuous vat leaching process 失效
标题翻译：连续增值税渗滤工艺
公开(公告)号：US3777003A
公开(公告)日：1973-12-04
申请号：US3777003D
申请日：1970-09-01
申请人： CONTINENTAL OIL CO
发明人： MITTERER A
IPC分类号： B01D11/00 , B01D11/02 , C01B25/22 , C22B3/04 , C01G43/00
CPC分类号： C22B3/04 , B01D11/0223 , B01D2011/002 , C01B25/22 , Y02P10/234
摘要： THE PRESENT INVENTION RELATES TO A METHOD FOR LEACHING A MINERAL FROM AN ORE CONTAINING SAID MINERAL WHEREIN A LEACHING SOLUTION IS PASSED UPWARDLY THROUGH A DOWNWARDLY FLOWING BED OR ORE. THE LEACHING SOLUTION IS PASSED THROUGH THE ORE UNDER CONDITIONS OF QUIESCENT FLOW WHEREBY THE MINERAL IS DISSOLVED FROM THE MINERAL ORE AND IS WITHDRAWN FROM THE UPPER PORTION OF A VESSEL CONTAINING SAID BED OR ORE. THE SPENT ORE IS WITHDRAWN FROM THE BOTTOM OF SAID VESSEL AND PASSED TO A SECOND VESSEL WHEREIN THE ORE IS WASHED FREE FROM ANY ENTRAINED LEACHING SOLUTION.

80. 发明授权

US3761563A Reacting metal oxides with a sulfate and pyrosulfate mixture 失效
标题翻译：用硫酸和磷酸盐混合物反应金属氧化物
公开(公告)号：US3761563A
公开(公告)日：1973-09-25
申请号：US3761563D
申请日：1971-04-20
申请人： KERNFORSCHUNGSANLAGE JUELICH
发明人： KAISER G , ZIMMER E
IPC分类号： C01F15/00 , C01G25/02 , C01G43/00 , C22B3/08 , C22B34/10 , C22B60/02 , C22B60/04 , C01G56/00
CPC分类号： C22B3/08 , C01F15/00 , C01G25/02 , C01G43/00 , C01P2004/82 , C22B34/10 , C22B60/0208 , C22B60/0213 , C22B60/0291 , C22B60/04 , Y02P10/234
摘要： The invention relates to a process for converting oxides to sulfates. The contemplated oxides are slowly soluble or insoluble in acids and/or lyes, particularly the oxides found in nuclear fuel and/or breeder material. The oxides are mixed with a sulfate and a disulfate (pyrosulfate) and heated to between about 650* C and 800* C for a comparatively short time. The amount of disulfate should be at least stoichiometric.
摘要翻译：本发明涉及将氧化物转化为硫酸盐的方法。预期的氧化物缓慢溶解或不溶于酸和/或碱液，特别是在核燃料和/或育种材料中发现的氧化物。将氧化物与硫酸盐和二硫酸盐（焦硫酸盐）混合并加热至约650℃至800℃相对较短的时间。二硫酸盐的量应至少为化学计量。

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