专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5968364A Process for the removal of toxic cyanide and heavy metal species from alkaline solutions 失效
标题翻译：从碱性溶液中去除有毒氰化物和重金属物质的方法
公开(公告)号：US5968364A
公开(公告)日：1999-10-19
申请号：US722912
申请日：1996-09-27
申请人： Michael J. Virnig , Phillip L. Mattison , George A. Wolfe , J. Michael Sierakoski , J. Murdoch Mackenzie , Keith E. Weerts
发明人： Michael J. Virnig , Phillip L. Mattison , George A. Wolfe , J. Michael Sierakoski , J. Murdoch Mackenzie , Keith E. Weerts
IPC分类号： C02F1/26 , C02F9/00 , B01D11/04
CPC分类号： C02F1/26 , C02F2101/18
摘要： Toxic cyanide and anionic metal species are removed from aqueous alkaline solutions by contacting the aqueous alkaline solutions with an extractant compound which is capable of being protonated at a pH of 9 or above. Whereby the anionic metal species is extracted from the aqueous alkaline solution, subsequently stripping the metal values from the extractant and recovering the metal species, preferably by electrowinning. The process is useful in a flotation process in which a recycled aqueous process stream is employed in that the toxic cyanide ion and anionic metal species are removed prior to recycling of the aqueous process stream for flotation.
摘要翻译：通过使碱性水溶液与能够在9或更高的pH下质子化的萃取剂化合物接触，从碱性水溶液中除去有毒氰化物和阴离子金属物质。由阴离子金属物质从碱性水溶液中提取，随后从萃取剂中汽提金属值，并优选通过电解沉积来回收金属物质。该方法在浮选方法中是有用的，其中使用循环的水性工艺流，因为在再循环用于浮选的水性工艺流之前，将有毒的氰化物离子和阴离子金属物质除去。

2. 发明授权

US5522997A Process for the removal of toxic cyanide and heavy metal species from alkaline solutions 失效
标题翻译：从碱性溶液中去除有毒氰化物和重金属物质的方法
公开(公告)号：US5522997A
公开(公告)日：1996-06-04
申请号：US33677
申请日：1993-03-16
申请人： Michael J. Virnig , Phillip L. Mattison , George A. Wolfe , J. Michael Sierakoski , Murdoch Mackenzie , Keith E. Weerts
发明人： Michael J. Virnig , Phillip L. Mattison , George A. Wolfe , J. Michael Sierakoski , Murdoch Mackenzie , Keith E. Weerts
IPC分类号： B01D11/04 , C01G3/00 , C01G9/00 , C01G13/00 , C01G28/00 , C02F9/00 , C22B3/26 , C22B11/00
CPC分类号： C22B3/0008 , C01G13/003 , C01G28/001 , C01G3/003 , C01G9/003 , C22B3/0005 , C02F2101/103 , C02F2101/18 , C02F2101/20 , Y02P10/234
摘要： Toxic cyanide and anionic metal species are removed from aqueous alkaline solutions by contacting the aqueous alkaline solutions with a compound which is capable of being protonated at a pH of 9 or above.
摘要翻译：通过使碱性水溶液与能够在9或更高的pH下质子化的化合物接触，从碱性水溶液中除去有毒的氰化物和阴离子金属物质。

3. 发明授权

US5939034A Process for the recovery of precious metal values from aqueous ammoniacal thiosulfate leach solutions 失效
标题翻译：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。

4. 发明授权

US06197214B1 Ammonium thiosulfate complex of gold or silver and an amine 失效
标题翻译：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。

5. 发明授权

US4544532A Solvent extraction 失效
标题翻译：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式