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gold leaching and grinding of platinum

ReviewHydrometallurgical recovery/recycling of platinum

2013年2月1日  The new process consists of grinding the material followed by leaching with HCl/HNO 3 to dissolve the Pt in the solution. The Pt in the solution is concentrated by evaporation to recover Pt while recycling HCl for leaching.

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Direct leach approaches to Platinum Group Metal (PGM)

2015年7月1日  The leach reaction is rapid and according to Prasad et al. (1991), gold extractions of up to 99% can be achieved in acidic conditions (solution pH of about

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(PDF) Commercial Processes for the Extraction of

2018年1月6日  Platinum Group Metals (PGMs) play a significant role in the manufacturing of catalysts, super alloys, electronics, space materials,

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Platinum, palladium and gold leaching from magnetite

2016年12月1日  Platinum, palladium and gold leaching from magnetite ore, with concentrated chloride solutions and ozone Robinson Torres a b , Gretchen T. Lapidus a

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Direct leach approaches to Platinum Group Metal (PGM)

2015年7月1日  A novel sequential heap leaching process has been identified as a possible alternative to the conventional concentrate–smelt–refine route for processing Platreef

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Platinum, palladium and gold leaching from magnetite

2016年12月1日  Platinum, palladium and gold extraction from a magnetite concentrated ore. Leaching tests at 20 °C, with concentrated chloride solutions and ozone sparging at

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Extraction of platinum, palladium and gold by ... - ScienceDirect

1994年4月1日  Cyanidation at pH 11.5 for 48 h of ore ground to 80% − 74 μ m (standard cyanidation conditions) extracted 6–18% of the platinum, 20–50% of the palladium (the

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Commercial Processes for the Extraction of Platinum

2018年1月6日  Rumpold R, Antrekowitsch J (2012) Recycling of platinum group metals from automotive catalysts by an acidic leaching process. In: The Southern African

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Chloride solution leaching of platinum from Indonesia gold ore ...

2017年10月12日  Efficient yet small scale applicable method of extraction is needed to utilize those deposits. Chloride solution based leaching facilitates excellent condition for

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