Tin-bearing polymetallic ore mining in Transbaikalia and physicochemical geotechnology of extraction of rare and nonferrous metals

The research aims to develop a technology for extraction of rare and nonferrous metals from mining waste using a physicochemical geotechnology, which, in combination with the analysis of material constitution of tin-bearing polymetallic ore processing waste at Khapcheranga and Sherlovaya Gora deposits in Transbaikalia, is a relevant scientific problem. Khapcheranga ore contains arsenopyrite, galena, sphalerite, pyrrhotine, cassiterite, pyrite and stannite; the vein material represents quartz, muscovite, topaz, chlorite, carbonates and tourmaline. The waste of tin-bearing polymetallic ore processing in East Transbaikalia is compound manmade deposits containing scandium, beryllium, indium, bismuth, cadmium, tantalum and niobium, as well as nonferrous metals of lead, zinc, tin and tungsten. The mixed-type technology of extraction of rare and nonferrous metals from tailings in East Transbaikalia is developed on the basis of the physicochemical geotechnology (in-situ leaching at the bottom of tailings ponds, chemical dissociation, local stage-wise leaching, including washing, regeneration, leaching, sorption, extraction, regeneration and precipitation). The application of the mixed-type technology can enable production of high-purity compounds of rare elements at the increased eco-friendliness of the activities.

Shumilova L. V., Yurgenson G. A., Khatkova A. N. Tin-bearing polymetallic ore mining in Transbaikalia and physicochemical geotechnology of extraction of rare and nonferrous metals. MIAB. Mining Inf. Anal. Bull. 2022;(9):156-168. [In Russ]. DOI: 10.25018/ 0236_1493_2022_9_0_156.

The study was supported by the Russian Science Foundation, Grant No. 22-17-00040 for basic and exploratory research in 2022–2023, under the state contract on Topic No. FUFR-2021-0005.

L.V. Shumilova¹, Dr. Sci. (Eng.), Assistant Professor, Professor, e-mail: shumilovalv@ mail.ru, ORCID ID: 0000-0001-5991-9204, 
G.A. Yurgenson, Dr. Sci. (Geol. Mineral.), Professor, Chief Researcher, Institute of Natural Resources, Ecology and Cryology, Siberian Branch of Russian Academy of Sciences, Chita, Russia, e-mail: yurgga@mail.ru, ORCID ID: 0000-0002-7818-7528,
A.N. Khatkova¹, Dr. Sci. (Eng.), Professor, e-mail: alisa1965.65@mail.ru, ORCID ID: 0000-0001-6527-0026,
¹ Transbaikal State University, 672039, Chita, Russia.

L.V. Shumilova, e-mail: shumilovalv@ mail.ru.

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