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Extraction of Platinum from Low-Concentration Refining Nitric Acid Solutions Using Electrolytic and Sulfide Precipitation

  • PHYSICAL METALLURGY. THERMAL AND THERMOCHEMICAL TREATMENT TECHNOLOGIES
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Russian Metallurgy (Metally) Aims and scope

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 best result for platinum extraction (99.9%) has been achieved for zinc-assisted electrolytic precipitation, and the subsequent nitric acid treatment of the cake provides a platinum–palladium concentrate with the platinum content at least 96.1%.

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. National University of Science and Technology MISiS, 119049, Moscow, Russia

    V. D. Gorbacheva & R. S. Sel’nitsyn

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  1. V. D. Gorbacheva
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  2. R. S. Sel’nitsyn
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Correspondence to V. D. Gorbacheva.

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Translated by E. Yablonskaya

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Gorbacheva, V.D., Sel’nitsyn, R.S. Extraction of Platinum from Low-Concentration Refining Nitric Acid Solutions Using Electrolytic and Sulfide Precipitation. Russ. Metall. 2023, 2065–2069 (2023). https://doi.org/10.1134/S0036029523700106

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  • DOI: https://doi.org/10.1134/S0036029523700106

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