Journal of Siberian Federal University. Chemistry / Investigation and Development of the Technology of Processing Gold-Antimony Flotation Concentrates

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Issue
Journal of Siberian Federal University. Chemistry: 2018, Vol. 11, Issue 1
Authors
Rusalev, Rostislav E.; Grokhovskii, Sergei V.; Rogozhnikov, Denis A.; Naboichenko, Stanislav S.
Contact information
Rusalev, Rostislav E.: LLC EZ OCM-ENGINEERING 131 Uspensky, Verkhnyaya Pyshma, 624097, Russia; ; Grokhovskii, Sergei V.: LLC EZ OCM-ENGINEERING 131 Uspensky, Verkhnyaya Pyshma, 624097, Russia; Rogozhnikov, Denis A.: Ural Federal University named after the first President of Russia B.N. Yeltsin 19 Lenin, Ekaterinburg, 620083, Russia; Naboichenko, Stanislav S.: Ural Federal University named after the first President of Russia B.N. Yeltsin 19 Lenin, Ekaterinburg, 620083, Russia
Keywords
flotationconcentrate; antimony; gold; alkaline leaching; cyanidation
Abstract

Hydrometall urgicalinvestigations of gold antimony flotation concentrate have been carriedout. XRD and chemicalanalysesoftheconcentratehave beenstudied. Mainly, the material consists of compoundsofantimony, silicon, calcium, sulfur and iron. The main phases are quartz, stibnite, calcium carbonate and ankerite, pyrite and arsenopyrite have been found as well. The feature of an timonite’sdissolvinginalkaline solutions has been reviewed. The dependencesofeffectsofthetemperatu re, time, L/Sratioand NaOH concentration on the extraction antimony and sulfur from the flotation concentrate have been determined. During sulphide-alkaline leaching of the starting material several physicochemical characteristics of gold dissolution has been identified. Agitated cyanide gold leaching test of the disantimoniedcake was conducted. Goldrecoverywas 32,2 %. The obtained low indexes of gold recovery are based on cyanidation. A nitric acid leaching of disantimonied cake was proposed

Pages
110-121
Paper at repository of SibFU
http://elib.sfu-kras.ru/handle/2311/71009