Published date: Dec 31 2020

Journal Title: KnE Materials Science

Issue title: IV Congress “Fundamental Research and Applied Developing of Recycling and Utilization Processes of Technogenic Formations” Volume 2020

Pages: 65–69

DOI: 10.18502/kms.v6i1.8045

Larisa G. Chekanovalarchek.07@mail.ruInstitute of Technical Chemistry Ural Branch of the Russian Academy of Sciences, Perm, Russia

Vera N. VaulinaInstitute of Technical Chemistry Ural Branch of the Russian Academy of Sciences, Perm, Russia

Anastasia V. KharitonovaInstitute of Technical Chemistry Ural Branch of the Russian Academy of Sciences, Perm, Russia

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

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