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公开(公告)号:US4062924A
公开(公告)日:1977-12-13
申请号:US687910
申请日:1976-05-19
CPC分类号: C22B23/0415 , C22B3/06 , Y02P10/234
摘要: A process is provided for extracting iron values as soluble ferrous salts from a limonitic ore which comprises leaching the ore in an acidic medium in the presence of a reducing agent, the reducing agent being a sulfide. Non-ferrous metal values are also extracted from the ore and they may be selectively separated from the solubilized iron salts.
摘要翻译: 提供了一种从褐铁矿中提取铁值作为可溶性亚铁盐的方法,该方法包括在还原剂存在下将矿石浸入酸性介质中,所述还原剂是硫化物。 还从矿石中提取有色金属值,并且它们可以从溶解的铁盐中选择性分离。
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公开(公告)号:US4065542A
公开(公告)日:1977-12-27
申请号:US687887
申请日:1976-05-19
IPC分类号: C01G3/10 , C01G49/06 , C22B3/00 , C22B3/04 , C22B15/00 , C22B47/00 , C01G45/10 , C01G51/10 , C01G53/10
CPC分类号: C22B47/0063 , C01G49/06 , C22B23/043 , Y10S423/04
摘要: A process which enables cumulative recovery of nonferrous metal values from manganiferous sea nodules and a limonitic ore comprises treating the limonitic ore in an aqueous acidic medium under reducing conditions to extract nonferrous metals and iron from the ore and form a solution containing ferrous iron and then leaching the sea nodules with such solution to extract nonferrous metals from the sea nodules and precipitate a predominant amount of the iron as hydrated ferric oxide.
摘要翻译: 能够从锰矿海结核和褐铁矿累积回收有色金属的方法包括在还原条件下处理酸性介质中的褐铁矿矿石,从矿石中提取有色金属和铁,形成含有亚铁的溶液,然后浸出 用这种溶液的海结节从海结核中提取有色金属,并以水合的氧化铁沉淀出主要量的铁。
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公开(公告)号:US4046851A
公开(公告)日:1977-09-06
申请号:US697957
申请日:1976-06-21
CPC分类号: C22B47/0063 , Y10S423/04
摘要: A process for extracting metal values from manganiferous sea nodules is provided in which nickel, copper, and cobalt values are selectively leached in a sulfuric acid medium in two stages, the first stage being effected at a temperature up to about 100.degree. C and to a final pH of not less than about 1.5 and the second stage being effected at a temperature of about 160.degree. C to about 260.degree. C and at an initial pH of not less than about 1.5.
摘要翻译: 提供了一种从锰矿海结核中提取金属值的方法,其中镍,铜和钴的值在两个阶段中在硫酸介质中选择性浸出,第一阶段在高达约100℃的温度下进行, 最终pH不低于约1.5,第二阶段在约160℃至约260℃的温度下进行,初始pH不低于约1.5。
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公开(公告)号:US4085188A
公开(公告)日:1978-04-18
申请号:US664752
申请日:1976-03-08
IPC分类号: C22B23/00 , C01G45/00 , C22B3/00 , C22B3/04 , C22B15/00 , C22B47/00 , C01G3/14 , C01G51/12 , C01G53/12
CPC分类号: C22B47/0072 , C01G45/00 , C01P2006/80 , Y10S423/04
摘要: A process for extracting metal values from sea nodules is provided in which nickel, cobalt and copper values are selectively extracted by leaching raw sea nodules in an aqueous ammoniacal medium in the presence of a reducing agent for tetravalent manganese and carbonate to precipitate the reduced manganese as manganous carbonate.
摘要翻译: 提供了一种从海结核提取金属值的方法,其中通过在四价锰和碳酸盐还原剂存在下,在含水氨水介质中浸取生海结核选择性提取镍,钴和铜值,以将还原的锰沉淀为 碳酸锰。
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