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Open AccessArticle

Bioleaching of Au-Containing Ore Slates and Pyrite Wastes

1
Innovative Technology Center, National Research Tomsk State University, 36 Lenina Avenue, 634050 Tomsk, Russia
2
Siberian Research Institute of Agriculture and Peat, branch of the Siberian Federal Scientific Center of Agro-Bio Technologies of the Russian Academy of Sciences, 3 Gagarina Street, 634050 Tomsk, Russia
3
Pharmacognosy with Courses Botany and Ecology Department, Siberian State Medical University, “SSMU”, Tomsk, Moscow Tr., 2B, 634050 Tomsk, Russia
4
Pharmacognosy with Courses Botany and Ecology Department, Tuvan State University “TuvSU”, 36 Lenina street, 667000 Kyzyl, Russia
*
Authors to whom correspondence should be addressed.
Minerals 2019, 9(10), 643; https://doi.org/10.3390/min9100643
Received: 27 August 2019 / Revised: 14 October 2019 / Accepted: 18 October 2019 / Published: 20 October 2019
(This article belongs to the Collection Bioleaching)
The influence of the environment and bacterial cultures on the degree of gold leaching from Au-containing raw materials of different compositions, origins, and with different contents of gold, selected in the Ural Federal District (Russia), was determined. The leaching degree was determined according to the change of the gold concentration in the ore by means of mass-spectrometry with inductively-coupled plasma. It was demonstrated that the degree of Au bioleaching from carbonaceous-argillaceous slates, containing 2.17 g/t of gold, and from pyritic technogenic raw materials, containing 1.15 g/t, when holding them in peptone water and Leten medium reached 92.17% and 87.83%, respectively. View Full-Text
Keywords: bioleaching; Au extraction; biotechnology; carbonaceous-argillaceous slates; pyritic technogenic raw material bioleaching; Au extraction; biotechnology; carbonaceous-argillaceous slates; pyritic technogenic raw material
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Daibova, E.B.; Lushchaeva, I.V.; Sachkov, V.I.; Karakchieva, N.I.; Orlov, V.V.; Medvedev, R.O.; Nefedov, R.A.; Shplis, O.N.; Sodnam, N.I. Bioleaching of Au-Containing Ore Slates and Pyrite Wastes. Minerals 2019, 9, 643.

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