leaching of gold and platinum

Leaching platinum-group metals in a sulfuric acid/chloride solution ...

A leaching process was established based on the ability of platinum-group metals to form stable chloro-complexes in acidic chloride solutions. Industrial catalyst...

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Direct leach approaches to Platinum Group Metal (PGM) ores and ...

Request (PDF) | Direct leach approac... | Platinum Group Metals (PGMs), often with associated gold, have very few occurrences where they are present in an ore...

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Patent US4670052 - Process for the recovery of gold from a ...

Jun 2, 1987 ... The process comprises the steps of leaching the sludge with ... solubilize at least gold, palladium and platinum, removing silver from the leach...

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Patent US5215575 - Recovery of gold, silver and platinum group ...

Jun 1, 1993 ... A method as claimed in claim 2 in which the leaching stage is carried ... For example, platinum or gold ores can contain more metal than that...

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Platinum, palladium and gold leaching from magnetite ore, with ...

Jun 16, 2016 ... Platinum, palladium and gold extraction from a magnetite concentrated ore. Leaching tests at 20 °C, with concentrated chloride solutions and...

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How to Refine Precious Metals - Hydrometallurgy: Part 1- Leaching ...

The PLATSOL® process, originally designed to recover the platinum group ... Various options available to recover gold from PLATSOL® leach solutions are also.

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the recovery of platinum, palladium, and gold ... - Semantic Scholar

Ion exchange resins were investigated for the effective recovery of platinum, palladium, and gold from a pregnant cyanide heap leach solution. Screening results...

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Recovery of Platinum, Palladium, and Gold From ... - CDC stacks

Report of Investigations 8970. Recovery of Platinum, Palladium, and Gold. From Stillwater Complex Flotation. Concentrate by a Roasting-Leaching. Procedure.

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