DOI: 10.18503/1995-2732-2025-23-1-26-35
Abstract
Problem Statement (Relevance). Successful development of nuclear and thermonuclear energy, electrical and electronic industries is possible only if new sources of natural raw materials are searched, analyzed and developed. Such a promising source can be off-balance and man-made gold-bearing placer and ore deposits of the Far Eastern region containing zirconium, titanium, tin, tungsten, silver, tellurium, lanthanum, cerium, lead, bismuth, selenium, manganese, yttrium, scandium, gadolinium, lutetium, etc. An important aspect is the development of technical means of processing, taking into account the mineralogical and granulometric analysis of man-made rocks. Objective. It is required to substantiate gravity preparation of man-made high-clay rocks of an ore-placer site with a high content of small and fine particles of valuable components by means of innovative hydrodynamic systems, taking into account the experimental data obtained on the mineralogical, elemental, phase and granulometric composition of rocks. Results. A preliminary analysis of the high-clay rock of the man-made sites of the Priamur ore-placer deposit has been carried out. Energy dispersion spectra, mass and atomic composition of some minerals were obtained using an electron microscope. The presence of silver content and the predominance of the vanadium, manganese elements and etc. have been established by atomic emission spectroscopy. As a result of preliminary gravity processing of samples and plasma chemical exposure, spherical formations of iron oxides (FeO up to 47%), copper and aluminum were extracted. A technological scheme for processing the clay rock under study with the intractable mineral montmorillonite is proposed, including the installation of a new unit with gravitational separation of the mineral mass in thin-layer streams after preliminary hydrodynamic action by a jet interacting with cavitation elements. Conclusions. The prospects for the research development in the field of the development of off-balance and man-made gold-bearing placer and ore deposits in the Far Eastern region have been established. Based on the proposed innovative technical means, the gravitational preparation of man-made high-clay rocks with a high content of small and fine particles of valuable components is justified to ensure effective plasma chemical, electrolysis and sorption treatment.
Keywords
man-made high-clay rocks, mechanical activation, thinly layered separation, plasma processing
For citation
Khrunina N.P. One of the Approaches to Complex Processing of Man-Made Ore-Placer Raw Materials of the Amur Region. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 1, pp. 26-35. https://doi.org/10.18503/1995-2732-2025-23-1-26-35
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