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"The Bureau of Mines devised a procedure for selectively extracting platinum-group metals (PGM) and gold from Stillwater Complex flotation concentrate. The Stillwater Complex is the only major U.S. PGM resource. Development of a suitable extraction technique will contribute to its exploitation.

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Table of ContentsBench-Scale Flotation TestsRougher FlotationCleaning of Rougher ConcentratesPilot Mill OperationMetallurgical ResultsExamination of Rougher Circuit ProductsCleaning of Rougher Concentrates We have been conducting research on methods for beneficiating platinum-palladium ores from the Stillwater Complex, Montana. The Stillwater Complex contains the only known major …

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Provided is a method involving flotation of a feed of platinum group metal ore material to prepare a platinum group metal concentrate during mineral processing operations. Prior to and/or during the flotation, a lead-containing activator reagent and a xanthate collector reagent are added to the slurry and during the flotation, an oxygen-deficient flotation gas, such as nitrogen gas, is used.

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"The Bureau of Mines investigated methods for beneficiating platinum- palladium ores from the Stillwater Complex, Montana. Results of bench- scale and pilot-scale studies employing froth flotation to recover sulfide concentrates containing platinum-palladium values from a serpentinized ore are presented.

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Introduction to Mineral Processing. Froth Flotation Froth flotation is considered to be the most widely used method for ore beneficiation. In ore beneficiation, flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer ...

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In 2005, Stillwater Mining produced a total of 554,000oz of palladium and platinum, which included 428,000oz of palladium and 126,000oz of platinum. The average cash cost of production was US$324/oz, with a total production cost of US$472/oz. The average price received for sales was US…

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Platinum group metals (PGM) occur in many copper-nickel ores where pentlandite is present, particularly for reef type ore bodies. Other sulphide minerals also typically associated in PGM ores are chalcopyrite, chalcocite, pyrrhotite and pyrite.

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Flotation explained | Private Equity Definition

What is Flotation? A Brief Explanation of Flotation | Definition. The private equity definition for Flotation is currently in production; we will update this page as soon as the definition is complete.In the mean time, we do have a comprehensive glossary of private equity terms, video explanations and definitions.Meanwhile, if you would like to learn more about private equity and venture ...