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1. 发明授权

US4095975A Continuous recovery of copper metal from acidic solutions 失效
标题翻译：从酸性溶液中连续回收铜金属
公开(公告)号：US4095975A
公开(公告)日：1978-06-20
申请号：US790275
申请日：1977-04-25
申请人： Alkis S. Rappas , John N. Gerlach
发明人： Alkis S. Rappas , John N. Gerlach
IPC分类号： C01G3/00 , C07F1/08 , C22B3/26 , C22B15/12
CPC分类号： C01G3/003 , C07F1/08 , C22B3/0008 , Y02P10/234
摘要： A process for winning copper from acidic aqueous solutions which employs hydrogen to drive the reaction. The copper bearing liquor is treated with an organic phase comprising a quinolic reductant and a nitrile solubilized in a water immiscible solvent. Components of the two phases react to produce a nitrile ligand stabilized cuprous solution and an organic solution containing oxidized quinolic compound. After separation, the organic phase containing the spent quinolic is regenerated by hydrogenation. The cuprous ion solution is flash distilled to drive off the nitrile and to produce equimolar quantities of copper metal and cupric ions by disproportionation. The nitrile may be reabsorbed into the organic phase for reuse.
摘要翻译：从使用氢驱动反应的酸性水溶液中获得铜的方法。含铜液体用有机相处理，所述有机相包含可溶解在水不混溶溶剂中的喹啉还原剂和腈。两相的组分反应产生腈配体稳定的亚铜溶液和含有氧化喹啉化合物的有机溶液。分离后，通过氢化再生包含废醌的有机相。将亚铜离子溶液闪蒸蒸馏以除去腈，并通过歧化产生等摩尔量的铜金属和铜离子。腈可以被再吸收到有机相中用于再利用。

2. 发明授权

US4032331A Process for conserving quinolic compounds in an organic extractant copper recovery system 失效
标题翻译：在有机萃取铜回收系统中保存喹啉化合物的方法
公开(公告)号：US4032331A
公开(公告)日：1977-06-28
申请号：US720416
申请日：1976-09-03
申请人： John N. Gerlach
发明人： John N. Gerlach
IPC分类号： C22B3/36 , C22B15/00 , C22B15/12
CPC分类号： C22B15/0089 , C22B3/0037 , Y02P10/234 , Y02P10/236
摘要： Improvements are disclosed for a process of the type in which copper is produced by contacting an aqueous copper solution with a quinolic compound in an organic solvent to result in the precipitation and recovery of copper metal. In this type of process, the organic phase containing the extractant is separated from the copper depleted raffinate and the quinonic compound produced as a byproduct during copper precipitation may be reduced and used again for precipitating more metal salt.A two step reduction of copper is disclosed. In a first step, cupric copper is reduced to cuprous copper and in the second step, cuprous copper is reduced to copper metal.The inclusion of selected concentrations of chloride ions in the copper solution is disclosed to increase the rate at which copper is precipitated.The in-situ conversion of quinolic compound contained in the raffinate by oxidation to the quinonic compound is also disclosed to reduce extractant losses in the aqueous phase.A solvent system in which the percentage of aromatic solvent in a mixed organic solvent system is increased is also disclosed to increase the rate of reduction of copper metal.

3. 发明授权

US4033765A Extractions of copper from solutions by reduction with anthraquinols 失效
标题翻译：用蒽醌还原，从溶液中提取铜
公开(公告)号：US4033765A
公开(公告)日：1977-07-05
申请号：US720414
申请日：1976-09-03
申请人： John N. Gerlach
发明人： John N. Gerlach
IPC分类号： C22B3/36 , C22B15/00 , C22B15/12
CPC分类号： C22B3/0037 , C22B15/0089 , Y02P10/234 , Y02P10/236
摘要： Improvements are disclosed for a process of the type in which copper metal is produced by contacting an aqueous solution containing copper ions with a quinolic compound to result in the precipitation of copper metal. In this type of process, a quinonic compound is also produced during copper precipitation and it may be reduced to the quinolic compound for reuse in precipitating more copper metal.A two step reduction of copper is disclosed. In a first step, cupric copper is reduced to cuprous copper and in the second step, cuprous copper is reduced to copper metal.The inclusion of selected concentrations of chloride ions in the copper solution is disclosed to increase the rate at which copper is precipitated.The in-situ conversion of the quinolic compound contained in the raffinate to the quinonic compound is also disclosed to reduce extractant losses in the aqueous phase.A solvent system in which the percentage of nonpolar solvent in a mixed organic solvent system is increased is also disclosed to increase the rate of reduction of copper metal.
摘要翻译：公开了通过使含有铜离子的水溶液与喹啉化合物接触来制造铜金属的方法的改进，以导致铜金属的沉淀。在这种方法中，在铜沉淀期间也产生醌化合物，并且可以将其还原成醌化合物以用于沉淀更多的铜金属。

4. 发明授权

US4032332A Process for increasing the rate of copper metal production in a quinolic extraction system 失效
标题翻译：提高金属萃取系统中铜金属生产率的方法
公开(公告)号：US4032332A
公开(公告)日：1977-06-28
申请号：US720415
申请日：1976-09-03
申请人： John N. Gerlach
发明人： John N. Gerlach
IPC分类号： C22B3/36 , C22B15/00 , C22B15/12
CPC分类号： C22B15/0089 , C22B3/0037 , Y02P10/234 , Y02P10/236
摘要： Improvements are disclosed for a process of the type in which copper metal is produced by contacting an aqueous solution containing copper ions with a quinolic compound to result in the precipitation of copper metal. In this type of process, a quinonic compound is also produced during copper precipitation and it may be reduced to the quinolic compound for reuse in precipitating more copper metal.A two step reduction of copper is disclosed. In a first step, cupric copper is reduced to cuprous copper and in the second step, cuprous copper is reduced to copper metal.The inclusion of selected concentrations of chloride aromide and thiocyanate ions in the copper solution is disclosed to increase the rate at which copper is precipitated.The in-situ conversion of the quinolic compound contained in the raffinate to the quinonic compound is also disclosed to reduce extractant losses in the aqueous phase.A solvent system in which the percentage of nonpolar solvent in a mixed organic solvent system is increased is also disclosed to increase the rate of reduction of copper metal.

5. 发明授权

US4594132A Chloride hydrometallurgical process for production of copper 失效
标题翻译：氯化物湿法冶金工艺生产铜
公开(公告)号：US4594132A
公开(公告)日：1986-06-10
申请号：US625139
申请日：1984-06-27
申请人： Donald P. Satchell, Jr. , John N. Gerlach
发明人： Donald P. Satchell, Jr. , John N. Gerlach
IPC分类号： C01G3/00 , C22B3/10 , C22B15/00 , C25C1/00 , C25C1/12
CPC分类号： C01G3/003 , C22B15/0069 , C22B19/22 , C22B23/0423 , C22B3/10 , Y02P10/234 , Y02P10/236
摘要： A process for extractive metallurgy of metal sulfides, in particular copper sulfide ores, in which a metal sulfide mineral feed material is cocurrently oxidized in an aqueous cupric chloride solution in the presence of an oxidant to form a slurry containing a metal hydroxide precipitate; the slurry is leached with an acid; the leach solution is extracted with an organic extractant; the organic extractant is stripped with an aqueous stripping medium; and the copper is electrowon from the aqueous stripping medium. The large amount of acid required for the oxidation reaction is provided by the formation of the metal hydroxide precipitate.
摘要翻译：金属硫化物，特别是硫化铜矿石的提取冶金方法，其中金属硫化物矿物原料在氧化剂存在下在氯化铜水溶液中并流氧化，形成含有金属氢氧化物沉淀物的浆料; 用酸浸出浆料; 浸出液用有机萃取剂萃取; 用水性剥离介质汽提有机萃取剂; 并且铜从水性剥离介质中电解。通过形成金属氢氧化物沉淀物来提供氧化反应所需的大量酸。

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