Biorecovery of nanogold and nanogold compounds from gold-containing ores and industrial wastes

Maluckov, Biljana S.

doi:10.1007/s00253-021-11277-z

Cited by 3 publications

(1 citation statement)

References 153 publications

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“…д.) несомненно [1][2][3][4][5]. Поскольку количество таких объектов неуклонно растет, эффективное использование и повторная их переработка возможны лишь при достоверной оценке их ресурсов, определении форм (исходных и образованных в результате переотложения) нахождения металлов и выявлении условий концентрирования.…”

Section: Introductionunclassified

Minerals Au and Ag in the tailing dump of the processed ores (Salair, Russia)

Khusainova

Kalinin

Bortnikova

et al. 2023

jour

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This article provides data on the identification and distribution of Au-Ag minerals in the tailing dump of the processed ores in the pyrite-polymetallic deposit within the Salair ore field (Talmovskiye Sands, Salair). The mineral and chemical compositions of the samples were studied using atomic absorption, mass spectrometry with inductively coupled plasma, X-ray diffractometry, and scanning electron microscopy. We have established that a horizon of secondary enrichment was formed (with Au and Ag contents up to 5,3 and 53.7 g/t, respectively) over a long period of the tailing dump existence (more than 90 years) and at a depth of 0,6-0,8 meters. Gold and silver are unevenly distributed along the section and are present in three species:1) native (Aus, Ags), 2) mineral (acantite, petrovskaite), and 3) isomorphic (sulfides and secondary films). The identified residual and newly formed gold-silver minerals indicate active supergene processes of Au-Ag dissolution, migration, and precipitation. The transformation of native particles occurs through both chemogenic and mechanical processes.

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Section: Introductionunclassified

Minerals Au and Ag in the tailing dump of the processed ores (Salair, Russia)

Khusainova

Kalinin

Bortnikova

et al. 2023

jour

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Treatment of thiocyanate-containing wastewater: a critical review of thiocyanate destruction in industrial effluents

Wang

Xiao

et al. 2022

World J Microbiol Biotechnol

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Secondary minerals of Fe, Pb, Cu in sulfide-containing tailings: sequence of formation, electrochemical reactions and physico-chemical model (Talmovskie Sands, Salaire, Russia)

Khusainova

Bortnikova

Gaskova

et al. 2023

Russian Journal of Earth Sciences

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The results of studies of the composition and form of secondary minerals Fe, Pb, Cu, formed under contrasting physico-chemical conditions of the accumulated tailings from the enrichment of barite-polymetallic ores of the Salair ore field, are presented. The complex mineral composition of ores (pyrite, chalcopyrite, sphalerite, galena, fahlore) and long-term processes of chemical weathering of the substance contributed to the formation of monomineral and zonal secondary rims and fillings of the intergranular space, which were identified using modern research methods. Plumbojarosite, anglesite, cerussite, and iron hydroxides predominate among them; pyromorphite, ginsdalite, and covellite occur less frequently. The method of thermodynamic modeling was used to solve the inverse problem - the restoration of the composition of solutions that led to a change in the associations of secondary minerals. The nature of the ongoing processes can be characterized not only by chemical interactions, but also by electrochemical reactions in the systems under consideration, where various mineral components act as galvanic pairs, which, in combination with the physico-chemical parameters of the medium (pH, Eh, ionic composition of solutions ), leads to stepwise or incomplete oxidation of the original minerals with subsequent selective deposition of secondary compounds.

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Biorecovery of nanogold and nanogold compounds from gold-containing ores and industrial wastes

Cited by 3 publications

References 153 publications

Minerals Au and Ag in the tailing dump of the processed ores (Salair, Russia)

Minerals Au and Ag in the tailing dump of the processed ores (Salair, Russia)

Treatment of thiocyanate-containing wastewater: a critical review of thiocyanate destruction in industrial effluents

Secondary minerals of Fe, Pb, Cu in sulfide-containing tailings: sequence of formation, electrochemical reactions and physico-chemical model (Talmovskie Sands, Salaire, Russia)

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