extraction of platinum rom its ore

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  Extraction of platinum group metals from catalytic converters

  202422 · Moreover, the inherent scarcity of platinum group metals in catalytic converters presents its own set of challenges during the extraction process [ 55, 108, 183 ].

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  One-Step Separation of Platinum, Palladium, and Rhodium: …

  The present work explores a possibility to develop a three-liquid-phase extraction approach for one-step separation of platinum metal ions in highly concentrated acidic chloride media obtained by hydrometallurgical processes.

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  Potential Processing Routes for Recovery of Platinum Group …

  2017116 · Chen and Huang [ 37] studied extraction of platinum group metals using batch experiments on 80 g/t Pt and Pd flotation concentrates in a 50-l autoclave. Their investigation involved pressurized sulfuric acid pretreatment of the ore to oxidize sulfides into sulfates and oxides, thereby exposing the targeted PGMs.

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  Nickel processing - Extraction, Refining, Alloying | Britannica

  Nickel processing - Extraction, Refining, Alloying: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating …

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  The extractive metallurgy of south africa’s platinum ores

  The extraction technology for platinum-group metals (PGMs) has changed dramatically in the last 80 years, and the changes are likely to continue for years to come. This article will review advances in PGM extraction, including developments in semi-autogenous and fully autogenous milling; flotation equipment applications for treating high-chrome ores; …

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  (PDF) Extraction of Platinum Group Metals from …

  2024319 · Abstract The results of platinum extraction from a low-concentration nitric acid platinum-containing solution by sulfide and electrolytic precipitation are presented. The problem of the study is the question about a possibility of platinum(IV) extraction from refining nitric acid mother liquors of a complicated ionic and quantitative composition. The …

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  Chromium processing | Extraction, Uses & Applications

  chromium processing, preparation of the ore for use in various products. Chromium (Cr) is a brilliant, hard, refractory metal that melts at 1,857 °C (3,375 °F) and boils at 2,672 °C (4,842 °F). In the pure state it is resistant to ordinary corrosion, resulting in its application as an electroplated protective coating for other metals.

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  Extraction of Metals - Methods of Extraction of Metals from …

  The extraction of metals and their isolation occurs over a few major steps: Concentration of Ore – Here the ore is separated from earthy impurities. Isolation of metal from concentrated Ore – Here the ore is converted to its oxide form and then reduced. The steps involved are either calcination or roasting and then heating with a reducing ...

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