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Decomposition of Mineral Raw Materials Using a Mixture of Ammonium Hydrodifluoride and Sulfate

  • CHEMICAL METALLURGICAL PROCESSES OF ADVANCED PROCESSING OF ORES AND TECHNOGENIC AND SECONDARY RAW MATERIALS
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Abstract

The interaction of gold-containing rock and titanium-containing mineral raw materials with a mixture of ammonium hydrodifluoride NH4HF2 and ammonium sulfate (NH4)2SO4 at temperatures below 430°C has been studied. A comparative analysis showed that the use of a mixture of NH4HF2 and (NH4)2SO4 allows more complete winning of mineral raw materials compared to the use of ammonium hydrodifluoride alone. The mixture of NH4HF2 and (NH4)2SO4 is recommended as a new promising reagent for the decomposition of rocks and mineral raw materials for complete extraction of the product into solution during water leaching.

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Funding

The study was performed under the government contract (topic no. 205-2021-0002) at the Institute of Chemistry, Far East Branch, Russian Academy of Sciences.

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Authors and Affiliations

  1. Institute of Chemistry, Far East Branch, Russian Academy of Sciences, 690022, Vladivostok, Russia

    M. A. Medkov, G. F. Krysenko, D. G. Epov, E. E. Dmitrieva & S. I. Ivannikov

  2. Far East Geological Institute, Far East Branch, Russian Academy of Sciences, 690022, Vladivostok, Russia

    V. P. Molchanov

Authors
  1. M. A. Medkov
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  2. G. F. Krysenko
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  3. D. G. Epov
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  4. E. E. Dmitrieva
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  5. S. I. Ivannikov
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  6. V. P. Molchanov
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Correspondence to G. F. Krysenko.

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Translated by L. Smolina

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Medkov, M.A., Krysenko, G.F., Epov, D.G. et al. Decomposition of Mineral Raw Materials Using a Mixture of Ammonium Hydrodifluoride and Sulfate. Theor Found Chem Eng 57, 1149–1153 (2023). https://doi.org/10.1134/S0040579523050196

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  • DOI: https://doi.org/10.1134/S0040579523050196

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