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G. Chekanova, L., N. Vaulina, V., & V. Kharitonova, A. (2020). Hydrazides in the Processes of Extraction of Non-ferrous Metals from Ammonia Solutions. KnE Materials Science, 6(1), 65–69. https://doi.org/10.18502/kms.v6i1.8045

https://doi.org/10.18502/kms.v6i1.8045

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authors

  • Larisa G. Chekanova

    Larisa G. Chekanova

    Institute of Technical Chemistry Ural Branch of the Russian Academy of Sciences, Perm, Russia
  • Vera N. Vaulina

    Vera N. Vaulina

    Institute of Technical Chemistry Ural Branch of the Russian Academy of Sciences, Perm, Russia
  • Anastasia V. Kharitonova

    Anastasia V. Kharitonova

    Institute of Technical Chemistry Ural Branch of the Russian Academy of Sciences, Perm, Russia

Published Date

  • Dec 31, 2020

Hydrazides in the Processes of Extraction of Non-ferrous Metals from Ammonia Solutions

KnE Materials Science / IV Congress “Fundamental Research and Applied Developing of Recycling and Utilization Processes of Technogenic Formations” Volume 2020 / Pages 65–69

Abstract

The extraction of copper and other non-ferrous metals from ammonia solutions with hydrazides оf Versatic acids (C15–C19 fraction) is discussed in this article. Hydrazide group has been known to be a selective extractant for non-ferrous metals. Introducing the alkyl radical of -branched tert-carboxylic acids into the reagent structure may lead to new properties important for an extractant, such as chemical stability and good compatibility with solvents properties. The optimal extraction conditions, the effect of ammonium salts and the regularities of re-extraction are assessed.


Keywords: extraction, hydrazides,  -branched tert-carboxylic acids, non-ferrous metals

References
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[2] Radushev, A. V., Batueva, T. D. and Gusev V. Y. (2007). Copper(II) Complexation and Extraction with 2-Ethylhexanoic Acid N′,N′-dialkylhydrazides. Russian Journal of Inorganic Chemistry, vol. 52, issue 8,pp. 1317–1320.

[3] Gusev, V. Y., et al. (2012). N’,N’ - dialcylhydrazine p-tertbutylbenzene acid. Patent RF, № 2448174.

[4] Batueva, T. D., Baigacheva, E. V. and Nasrtdinova, T. Y. (2016). Vanadium(V) Extraction from Sulfuric and Hydrochloric Acid Solutions with Hydrazides and N’,N’-Dialkylhydrazides of Versatic Acids. Russian Journal of Inorganic Chemistry, vol. 61, issue 3, pp. 397–401.

[5] Batueva, T. D. and Shcherban, M. G. (2017). Rhenium(VII) extraction with Versatic hydrazides and N’,N’- Dialkylhydrazides. Russian Journal of Inorganic Chemistry, vol. 62, issue 10, pp. 1409-1413.

[6] Vaulina, V. N., et al. (2018). Method of copper(II) extraction from aqueous sulfuric acid solutions containing other metals. Patent RF, № 2668238.