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公开(公告)号：US4113848A
公开(公告)日：1978-09-12
申请号：US686496
申请日：1976-05-14
申请人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
发明人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
CPC分类号： C25C1/12 , C01G3/00 , C01G3/10 , C22B15/0071 , C22B15/0073 , C22B15/0089 , C22B15/0093 , Y02P10/236
摘要： Copper is processed via solutions of copper salts, both cupric and cuprous, in acidified aqueous solutions containing organic nitriles. Methods of producting solutions of cuprous salts include reduction of cupric salts and oxidation of copper and copper sulphides. Solutions of cuprous salts are thermally or electrochemically disproportionated to produce copper and solutions of cupric salts.
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公开(公告)号：US3966890A
公开(公告)日：1976-06-29
申请号：US533660
申请日：1974-12-17
申请人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
发明人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
CPC分类号： C25C1/12 , C01G3/00 , C01G3/10 , C22B15/0071 , C22B15/0073 , C22B15/0089 , C22B15/0093 , Y02P10/236
摘要： Methods of reducing aqueous solutions of cupric sulfate to cuprous solutions by using organic nitrile compositions are disclosed. The particular nitrile used is acetonitrile and the reductant is sulphur dioxide. The method has application commercially to leaching ores containing oxidised copper to obtain cuprous ion solutions. Such solutions can be treated by electrochemical or thermal disproportionation methods to obtain very pure copper.
摘要翻译： 公开了通过使用有机腈组合物将硫酸铜水溶液还原成亚铜溶液的方法。 所使用的特定腈是乙腈，还原剂是二氧化硫。 该方法具有商业上的用于浸出含有氧化铜的矿石以获得亚铜离子溶液的应用。 这种溶液可以通过电化学或热歧化方法处理，以获得非常纯的铜。
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公开(公告)号：US3961028A
公开(公告)日：1976-06-01
申请号：US533725
申请日：1974-12-17
申请人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
发明人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
CPC分类号： C25C1/12 , C01G3/00 , C01G3/10 , C22B15/0071 , C22B15/0073 , C22B15/0089 , C22B15/0093 , Y02P10/236
摘要： Method of preparing cuprous sulfate and bisulfate solutions from materials containing copper and impurities by a leaching process are disclosed. The leaching composition contains sulfuric acid, cupric ions, water and an organic nitrile. The leaching composition may be used with copper sulfide ores in particulate form. The cuprous solutions resulting from the leaching can be treated by disproportionation methods to recover pure copper.
摘要翻译： 公开了通过浸出方法从含有铜和杂质的材料制备硫酸亚铜和硫酸氢盐溶液的方法。 浸出组合物含有硫酸，铜离子，水和有机腈。 浸出组合物可以与颗粒形式的硫化铜矿石一起使用。 可以通过歧化方法处理由浸出产生的亚铜溶液来回收纯铜。
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公开(公告)号：US3937657A
公开(公告)日：1976-02-10
申请号：US533697
申请日：1974-12-17
申请人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
发明人： Alan James Parker , Winfield Earle Waghorne , Dion Ewing Giles , John Howard Sharp , Robert Alexander , David Michael Muir
CPC分类号： C25C1/12 , C01G3/00 , C01G3/10 , C22B15/0071 , C22B15/0073 , C22B15/0089 , C22B15/0093 , Y02P10/236
摘要： Copper is processed via solutions of copper salts, both cupric and cuprous, in acidified aqueous solutions containing organic nitriles. Methods of producting solutions of cuprous salts include reduction of cupric salts and oxidation of copper and copper sulphides. Solutions of cuprous salts are thermally or electrochemically disproportionated to produce copper and solutions of cupric salts.
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