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公开(公告)号：US4124462A
公开(公告)日：1978-11-07
申请号：US762561
申请日：1977-01-26
IPC分类号： C22B19/20 , B01D11/04 , C01G3/00 , C01G9/00 , C01G9/06 , C22B3/26 , C22B3/38 , C22B15/00 , C22B19/00 , C23G1/36 , C01G3/10 , C25C1/12 , C25C1/16
CPC分类号： C22B3/0067 , C01G3/003 , C01G9/06 , C22B15/0071 , C22B15/0089 , C22B15/0091 , C22B19/22 , C22B19/26 , C22B3/0032 , C22B3/0066 , C22B3/0068 , Y02P10/234 , Y02P10/236
摘要： Zinc is recovered from a material containing zinc and iron. The material is leached with sulphuric acid to produce a final pH of 3-5.5. Zinc powder is added to the leaching solution to precipitate polluting metals. Zinc is now extracted with a solution of a dialkyl phosphoric acid in an organic solvent. Zinc is extracted from the organic solution with sulphuric acid. Zinc is recovered from the sulphuric acid solution as metal or as zinc sulphate.
摘要翻译： 锌从含锌和铁的材料中回收。 该物质用硫酸浸出以产生3-5.5的最终pH。 将锌粉加入到浸出溶液中以沉淀污染金属。 锌用二烷基磷酸在有机溶剂中的溶液进行萃取。 用硫酸从有机溶液中提取锌。 锌作为金属或硫酸锌从硫酸溶液中回收。
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公开(公告)号：US4350667A
公开(公告)日：1982-09-21
申请号：US236562
申请日：1981-02-20
CPC分类号： C22B3/0032 , C01G3/003 , C22B3/0017 , C22B3/0021 , C22B3/0031 , C22B3/0037 , C22B3/0039 , C23F1/46 , Y02P10/234
摘要： Copper can be extracted from an ammoniacal copper solution by contacting said solution with an organic phase containing a first extraction reagent consisting of a beta-diketone as well as a second extraction reagent consisting of a hydroxy oxime, a hydroxy quinoline, or an alkylaryl sulphonamido quinoline. Alternatively, the copper solution can first be contacted with an organic phase containing the first extraction agent, and subsequently be contacted with an organic phase containing the second extraction reagent. It is possible to reach a low percentage of copper in the aqueous solution by using a low number of extraction steps.
摘要翻译： 通过使所述溶液与含有由β-二酮组成的第一提取试剂的有机相以及由羟基肟，羟基喹啉或烷基芳基磺酰氨基喹啉组成的第二提取试剂接触，可以从氨铜溶液中提取铜 。 或者，铜溶液可以首先与含有第一提取剂的有机相接触，然后与含有第二提取试剂的有机相接触。 通过使用少量的提取步骤可以在水溶液中达到低百分比的铜。
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3.发明授权Selectively extracting copper, zinc, nickel from a mixture of metal hydroxides 失效从金属氢氧化物的混合物中选择性提取铜，锌，镍
公开(公告)号：US4105743A
公开(公告)日：1978-08-08
申请号：US806939
申请日：1977-06-15
IPC分类号： C22B34/32 , C01G3/14 , C01G9/00 , C22B3/00 , C22B3/04 , C22B3/08 , C22B3/14 , C22B3/30 , C22B3/36 , C22B15/00 , C22B19/00 , C22B19/20 , C22B23/00 , C22B34/30 , C01G53/12
CPC分类号： C22B3/0037 , C22B15/0071 , C22B15/0078 , C22B19/24 , C22B3/0017 , C22B3/04 , C22B3/08 , C22B3/14 , Y02P10/234 , Y02P10/236
摘要： A mixture of metal hydroxides is leached with an ammoniacal carbonate solution, to dissolve nickel, copper and zinc. Metal is recovered from the leaching solution. The solid leaching residue is leached with sulphuric acid at a pH of 1.5- 3, to dissolve a further amount of nickel, copper and zinc. The acidic leaching solution is passed to the ammoniacal leaching process.
摘要翻译： 金属氢氧化物的混合物用氨碳酸盐溶液浸出，以溶解镍，铜和锌。 从浸出液中回收金属。 固体浸出残渣用pH为1.5-3的硫酸浸出，以溶解更多量的镍，铜和锌。 酸性浸出溶液通过氨浸出过程。
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