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    Method for refining hydroxides of niobium and tantalum containing transition metals
    2.
    发明授权
    Method for refining hydroxides of niobium and tantalum containing transition metals 失效
    铌和含钽过渡金属氢氧化物的精制方法

    公开(公告)号：US4942024A

    公开(公告)日：1990-07-17

    申请号：US364081

    申请日：1989-06-02

    申请人： Hiromi Sasaki ,  Tadasi Tanaka ,  Yasusi Muneno

    发明人： Hiromi Sasaki ,  Tadasi Tanaka ,  Yasusi Muneno

    IPC分类号： C01G33/00 ,  C01G35/00 ,  C22B3/10 ,  C22B3/16 ,  C22B3/34

    CPC分类号： C22B3/165 ,  C01G33/00 ,  C01G35/00 ,  C22B3/0031 ,  C22B3/10 ,  C01P2006/80 ,  Y02P10/234

    摘要： Refining of either niobium hydroxide or tantalum hydroxide containing transition metals as impurities is accomplished easily and economically by dissolving the metal hydroxide in an aqueous solution of either hydrofluoric acid or oxalic acid, adjusting the pH of the solution to 1 to 4 and adding ammonium pyrrolidinedithiocarbamate (APDC) to the solution while maintaining the temperature of the solution below 60.degree. C. The addition of APDC causes the transition metals to simultaneously precipitate as coordination compounds. The minimum amount of APDC is 0.05 wt % of Nb.sub.2 O.sub.5 or Ta.sub.2 O.sub.5 that can be formed from Nb or Ta contained in the solution. After the treatment with APDC the pH of the solution is raised to 6 or above to precipitate the refined metal hydroxide.

    摘要翻译： 通过将金属氢氧化物溶解在氢氟酸或草酸的水溶液中，将溶液的pH调节至1至4并加入吡咯烷二硫代氨基甲酸铵（其中， APDC），同时将溶液的温度保持在60℃以下。加入APDC使过渡金属同时作为配位化合物沉淀。 APDC的最小量为可以由溶液中含有的Nb或Ta形成的Nb 2 O 5或Ta 2 O 5的0.05重量％。 用APDC处理后，将溶液的pH升至6以上，沉淀精制金属氢氧化物。

    Process for separating the actinides and lanthanides present in the trivalent state in an acid aqueous solution
    5.
    发明授权
    Process for separating the actinides and lanthanides present in the trivalent state in an acid aqueous solution 失效
    在酸性水溶液中分离存在于三价态的锕系元素和镧系元素的方法

    公开(公告)号：US4496523A

    公开(公告)日：1985-01-29

    申请号：US394491

    申请日：1982-07-02

    申请人： Michelle Bonnin ,  Claude Musikas ,  Pierre Vitorge

    发明人： Michelle Bonnin ,  Claude Musikas ,  Pierre Vitorge

    IPC分类号： C22B59/00 ,  B01D11/04 ,  C01F17/00 ,  C01G43/00 ,  C01G56/00 ,  C22B3/34 ,  C22B3/36 ,  C22B60/02 ,  G21F9/00

    CPC分类号： G21F9/007 ,  C01G56/001 ,  C22B3/0031 ,  C22B3/0039 ,  Y02P10/234

    摘要： A process for the separation of the actinides and lanthanides present in the trivalent state in an acid aqueous solution, wherein the actinides present in such aqueous solution are extracted selectively in an organic solvent by bringing the solution into contact with an organic solvent comprising a first extracting agent formed by an organic bonding agent having an electron-donor nitrogen atom and a second extracting agent formed by an acid organosoluble organic compound able to exchange its H.sup.+ ions for metal ions or by metallic salt of such compound.Application to the nuclear industry, inter alia in the field of the treatment of aqueous effluents containing lanthanides and actinides, such an transuranic elements.

    摘要翻译： 在酸性水溶液中分离存在于三价态的锕系元素和镧系元素的方法，其中存在于这种水溶液中的锕系元素通过使溶液与包含第一提取物的有机溶剂接触而在有机溶剂中选择性萃取 由具有电子给体氮原子的有机粘合剂形成的试剂和由能够交换其用于金属离子的H +离子的酸性有机溶剂有机化合物或由该化合物的金属盐形成的第二萃取剂。 对核工业的应用，特别是在含有镧系元素和锕系元素的含水废水处理领域，如超铀元素。

    Use of the sodium salt of 2-mercaptopyridine-N-oxide to separate gold from acidic solutions
    7.
    发明授权
    Use of the sodium salt of 2-mercaptopyridine-N-oxide to separate gold from acidic solutions 失效
    使用2-巯基吡啶-N-氧化物的钠盐将金与酸性溶液分离

    公开(公告)号：US4368073A

    公开(公告)日：1983-01-11

    申请号：US258989

    申请日：1981-04-30

    申请人： Sigmund Breister ,  Joseph R. Reiner

    发明人： Sigmund Breister ,  Joseph R. Reiner

    IPC分类号： C01G7/00 ,  C22B3/34 ,  C22B11/04

    CPC分类号： C22B3/0031 ,  C01G7/003 ,  Y02P10/234

    摘要： Disclosed is a process for separating gold from acidic solutions having a pH below about 3 which comprises the steps of:(a) adding a sufficient amount of the sodium salt of 2-mercaptopyridine-N-oxide to cause at least a portion of the gold in the aqueous acidic solution precipitate from the solution; and(b) separating the precipitated gold from the acidic solution.Also disclosed is that gold is selectively precipitated from acidic solutions containing other metals [e.g., Fe, Cu, Zn, Sn] when the molar ratio of added sodium 2-mercaptopyridine-N-oxide to gold in the acidic solution is less than about 1.5:1.

    摘要翻译： 公开了一种从pH低于约3的酸性溶液中分离金的方法，该方法包括以下步骤：（a）加入足量的2-巯基吡啶-N-氧化物钠盐以引起至少一部分金 在酸性水溶液中从溶液中沉淀出来; 和（b）从酸性溶液中分离沉淀的金。 还公开了当在酸性溶液中加入的2-巯基吡啶-N-氧化物钠与金的摩尔比小于约1.5时，金从含有其它金属[例如Fe，Cu，Zn，Sn]的酸性溶液中选择性沉淀 ：1。

    Sulfonamidophenols, metal complexes thereof, and solutions containing such compounds for use in extraction of metal values
    8.
    发明授权
    Sulfonamidophenols, metal complexes thereof, and solutions containing such compounds for use in extraction of metal values 失效
    磺酰胺苯酚，其金属络合物，以及含有用于提取金属价值的化合物的溶液

    公开(公告)号：US4239699A

    公开(公告)日：1980-12-16

    申请号：US909224

    申请日：1978-05-24

    申请人： Kenneth D. MacKay

    发明人： Kenneth D. MacKay

    IPC分类号： C01G3/00 ,  C01G9/00 ,  C01G53/00 ,  C22B3/34 ,  C07C143/78 ,  B01D11/04 ,  C07C143/79

    CPC分类号： C01G9/003 ,  C01G3/003 ,  C01G53/003 ,  C22B3/0031 ,  Y02P10/234

    摘要： Certain sulfonamidophenols, metal complexes thereof and solutions of said compounds in essentially water-immiscible, liquid hydrocarbon solvents are disclosed. The sulfonamidophenols have the structural formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined in the specification and claims hereof. Particular metal values are recovered from their aqueous solutions by using sulfonamidophenols dissolved in essentially water-immiscible liquid hydrocarbon solvents. The extraction process involves contacting the metal value containing aqueous solution with the solution of sulfonamidophenol in essentially water-immiscible liquid hydrocarbon solvent and stripping the metal values from the loaded organic phase.

    摘要翻译： 公开了某些磺酰胺苯酚，其金属络合物和所述化合物在基本上与水不混溶的液体烃溶剂中的溶液。 磺酰胺苯酚具有结构式：其中R 1，R 2，R 3和R 4如本说明书和权利要求书中所定义。 通过使用溶解在基本上与水不混溶的液体烃溶剂中的磺酰胺酚从其水溶液中回收特定的金属值。 提取过程包括使含金属含量的水溶液与基本上与水不混溶的液体烃溶剂中的磺酰胺基苯溶液接触并从负载的有机相中汽提金属值。

    Sulfonamido oximes, metal complexes thereof, and solutions containing such compounds for use in extraction of metal values
    9.
    发明授权
    Sulfonamido oximes, metal complexes thereof, and solutions containing such compounds for use in extraction of metal values 失效
    磺胺肟，其金属络合物和含有这些化合物的溶液用于提取金属价值

    公开(公告)号：US4160807A

    公开(公告)日：1979-07-10

    申请号：US90922678

    申请日：1978-05-24

    申请人： HENKEL CORP

    发明人： VIRNIG MICHAEL J ,  MACKAY KENNETH D

    IPC分类号： C01G3/00 ,  C01G9/00 ,  C01G51/00 ,  C01G53/00 ,  C22B3/34 ,  C07C143/78 ,  B01D11/04 ,  C07C143/79

    CPC分类号： C22B3/0031 ,  C01G3/003 ,  C01G9/003 ,  C01G51/003 ,  C01G53/003 ,  Y02P10/234

    摘要： Certain sulfonamido oximes, metal complexes thereof and solutions of said compounds in essentially water-immiscible, liquid hydrocarbon solvents are disclosed. The sulfonamido oximes have the general structural formula: wherein A, R1, R2 and R3 are as defined in the specification and claims hereof. Particular metal values are recovered from their aqueous solutions by using sulfonamido oximes dissolved in essentially water-immiscible liquid hydrocarbon solvents. The extraction process involves contacting the metal value containing aqueous solution with the solution of the sulfonamido oxime in essentially water-immiscible liquid hydrocarbon solvent and stripping the mertal values from the loaded organic phase.

    摘要翻译： 公开了某些磺酰胺肟，其金属络合物和所述化合物在基本上与水不混溶的液体烃溶剂中的溶液。 亚磺酰氨基肟具有以下通式结构式：其中A，R 1，R 2和R 3如本说明书和权利要求中所定义。 通过使用溶解在基本上与水不混溶的液体烃溶剂中的磺酰胺肟，从其水溶液中回收特定的金属值。 提取过程包括将含金属含量的水溶液与磺酰胺肟的溶液在基本上与水不混溶的液体烃溶剂中接触并从负载的有机相中汽提出来的值。