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    Process for the recovery of precious metal values from aqueous ammoniacal thiosulfate leach solutions
    3.
    发明授权
    Process for the recovery of precious metal values from aqueous ammoniacal thiosulfate leach solutions 失效
    从含水硫代硫酸铵浸出液中回收贵金属价值的方法

    公开(公告)号：US5939034A

    公开(公告)日：1999-08-17

    申请号：US878263

    申请日：1997-06-17

    申请人： Michael J. Virnig ,  J. Michael Sierakoski

    发明人： Michael J. Virnig ,  J. Michael Sierakoski

    IPC分类号： C01G5/00 ,  C01G7/00 ,  C07C279/16 ,  C07G99/00 ,  C22B3/28 ,  C22B11/08 ,  C22B11/00

    CPC分类号： C22B11/04 ,  C01G5/003 ,  C01G7/003 ,  C07C279/16 ,  C07G17/00 ,  C22B3/0012 ,  C07C2101/14 ,  Y02P10/234

    摘要： The process of recovering precious metals from ores containing precious metals, such as gold and silver, from an aqueous ammoniacal thiosulfate leach solution to provide a significant practical and economical process for the recovery of gold or silver is disclosed. After leaching of the ore with an aqueous ammoniacal thiosulfate solution, the leach solution is contacted with a precious metal extraction reagent to extract the precious metal values from the leach solution, after which the precious metal values are stripped from the extraction reagent to form a concentrated solution of the precious metal values from which the precious metals may be recovered by conventional methods such as electrolysis. The extraction reagents are those having guanidyl functionality or a quaternary amine functionality mixed with a weak organic acid such as a phenol.In the process, novel thiosulfate complexes of the precious metals are formed with the quanidyl or the quaternary amine extractants.

    摘要翻译： 公开了从含氨基硫代硫酸盐浸出溶液中回收含有贵金属（例如金和银）的矿石中的贵金属的过程，为回收金或银提供了重要的实用和经济的方法。 在用含硫代硫酸铵水溶液浸出矿石后，将浸出溶液与贵金属萃取剂接触，从浸出溶液中提取贵金属值，然后从提取试剂中汽提出贵金属离子形成浓缩的 可以通过电解等常规方法回收贵金属的贵金属值的溶液。 提取试剂是具有胍基官能度的那些或与弱有机酸如苯酚混合的季胺官能团。 在此过程中，贵金属的新型硫代硫酸盐络合物与仲胺或季胺萃取剂形成。

    Ammonium thiosulfate complex of gold or silver and an amine
    4.
    发明授权
    Ammonium thiosulfate complex of gold or silver and an amine 失效
    金或银的硫代硫酸铵配合物和胺

    公开(公告)号：US06197214B1

    公开(公告)日：2001-03-06

    申请号：US09299339

    申请日：1999-04-26

    申请人： Michael J. Virnig ,  J. Michael Sierakoski

    发明人： Michael J. Virnig ,  J. Michael Sierakoski

    IPC分类号： C09K300

    CPC分类号： C01G5/003 ,  C01G7/003 ,  C07C279/16 ,  C07C2601/14 ,  C07G17/00 ,  C22B3/0012 ,  C22B3/0016 ,  C22B3/12 ,  C22B3/14 ,  C22B11/04 ,  Y02P10/234

    摘要： The process of recovering precious metals from ores containing precious metals, such as gold and silver, from an aqueous ammoniacal thiosulfate leach solution to provide a significant practical and economical process for the recovery of gold or silver. After leaching of the ore with an aqueous ammoniacal thiosulfate solution, the leach solution is contacted with a precious metal extraction reagent to extract the precious metal values from the leach solution, after which the precious metal values are stripped from the extraction reagent to form a concentrated solution of the precious metal values from which the precious metals may be recovered by conventional methods such as electrolysis. The extraction reagents are those having guanidyl functionality or a quaternary amine functionality mixed with a weak organic acid such as a phenol. In the process, novel thiosulfate complexes of the precious metals are formed with the quanidyl or the quaternary amine extractants.

    摘要翻译： 从含有硫代硫酸铵水溶液的含水金属中回收含贵金属的矿石中的贵金属的过程，为回收金或银提供了重要的实用经济的工艺。 在用含硫代硫酸铵水溶液浸出矿石后，将浸出溶液与贵金属萃取剂接触，从浸出溶液中提取贵金属值，然后从提取试剂中汽提出贵金属离子形成浓缩的 可以通过电解等常规方法回收贵金属的贵金属价值的溶液。 提取试剂是具有胍基官能度的那些或与弱有机酸如苯酚混合的季胺官能团。在该方法中，贵金属的新型硫代硫酸盐络合物与仲胺或季胺萃取剂形成。

    Solvent extraction
    5.
    发明授权
    Solvent extraction 失效
    溶剂萃取

    公开(公告)号：US4544532A

    公开(公告)日：1985-10-01

    申请号：US660592

    申请日：1984-10-15

    申请人： Gary A. Kordosky ,  R. Brantley Sudderth ,  J. Michael Sierakoski ,  Kenneth D. MacKay

    发明人： Gary A. Kordosky ,  R. Brantley Sudderth ,  J. Michael Sierakoski ,  Kenneth D. MacKay

    IPC分类号： C01G3/00 ,  C22B3/26 ,  C22B3/30

    CPC分类号： C22B3/0021 ,  C01G3/003 ,  C22B3/0017 ,  Y02P10/234 ,  Y10S423/14

    摘要： Reagents formulated by admixture of selected hydroxy aryl ketoxime and hydroxy aryl aldoxime extractants provide for efficient recovery of metal values, especially copper values, by solvent extraction processes. Specified kinetic and equilibrium conditions, which would require use of predetermined quantities of kinetic additives if ketoximes alone were employed or predetermined quantities of equilibrium modifiers if aldoximes were employed, are secured through formulation of reagents including both ketoxime and aldoxime extractants with less than the predetermined quantities of kinetic additive or equilibrium modifier. Reagents employed in methods of the invention may include from 0 to about 20 mole percent of a kinetic additive based on ketoxime content and also optionally a modifier of extraction and stripping equilibria in an amount providing a degree of modification of the aldoxime constituent of from about 0.75 to 1.0 and preferably from about 0.90 to 1.0.

    摘要翻译： 通过混合选择的羟基芳基酮肟和羟基芳基醛肟萃取剂配制的试剂通过溶剂萃取方法提供金属值，特别是铜值的有效回收。 规定的动力学和平衡条件，如果使用单一酮肟或需要使用预定量的平衡调节剂，则需要使用预定量的动力学添加剂，通过配制包括酮肟和醛肟萃取剂的试剂，其含量小于预定量 的动力学添加剂或平衡改性剂。 在本发明的方法中使用的试剂可以包括0至约20摩尔％的基于酮肟含量的动力学添加剂，并且还可以任选地提供提取和汽提平衡的改性剂，其量提供约0.75的醛肟组分的一定程度的改性 至1.0，优选约0.90至1.0。