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Tirskiy A.V.,Central Research Analytics Laboratory | Bakharev Yu.V.,Priargunsky Industrial Mining and Chemical Union JSC | Lebedev V.V.,Priargunsky Industrial Mining and Chemical Union JSC
Gornyi Zhurnal | Year: 2013

Specifics of mineral raw materials base and technological process of uranium mining enterprise has historically foreordained the wide application of geological and geophysical methods of production support at Priargunsky Industrial Mining and Chemical Union. Various methods and modifications of geophysics support the following basic directions of enterprise's activity: geological prospecting works, basic technology of extraction and processing of mineral raw materials, guaranteeing of ecological safety, solving of engineering problems etc. Results of works are presented in the form of diagrams and flow pattern maps or in the digitized form, according to the results of computer processing of these measurements. Geological and geophysical support of basic production is directed on the following operations: - definition of mineralization parameters; - control of completeness and quality of stoping; - complex usage; - decreasing of losses and impoverishment of minerals; - sorting and concentration of ore mass; - stabilization of quality; - calculation of marketable products. Instrument equipment of geophysical works was carried out according to the special expression of requirements, taking into account the specificity of works in underground conditions. X ray radiometric monitoring station "STARK" was designed and constructed at the entry to the mining and metallurgical plant, for the purpose of separation of complex molybdenum and uranium ores from ore flow. This station makes it possible to do the following operations: - efficient definition of uranium and molybdenum content in ore; - controlling of the presence of oversize pieces and impurities; - controlling of excess moisture and granulometric composition. These operations make it possible to provide the molibdenum line of mining and metallurgical plant with raw materials.

Rasskazov I.Yu.,Russian Academy of Sciences | Gladyr A.V.,Russian Academy of Sciences | Anikin P.A.,Russian Academy of Sciences | Svyatetskiy V.S.,Priargunsky Industrial Mining and Chemical Union JSC | Prosekin B.A.,Priargunsky Industrial Mining and Chemical Union JSC
Gornyi Zhurnal | Year: 2013

This article gives the information about geomechanic condition of rock mass of processed rock bump hazardous uranium deposits of Streletskoe ore district. There are considered the data about large dynamic high rock pressure on deep horizons, which has appeared at Antei deposit in the last decade. There is described the information about the development and introduction of efficient control methods of deformation mode of rock mass, using the modern digital equipment and programs. There is also briefly described the developed complex program of scientific-research and experimental-development works (stages) for creation of multi-level system of complex geodynamic monitoring (geodynamic range). Creation of such system is a unique, large-scale and complex task. According to the research results, there were developed the "Indications for safe mining operations on the rock bump hazardous Antei deposit", which confirms the practical dependence of these works for production. The following specialists were the participants of these researches: B. G. Saksin (Doctor of Geological and Mineralogical Sciences), V. A. Lugovoy (Doctor of Physical and Mathematic Sciences), V. A. Shvets (Candidate of Engineering Sciences) and A. V. Fedotov.

Kornev I.,Tomsk Polytechnic University | Osokin G.,Tomsk Polytechnic University | Yavorovsky N.,Tomsk Polytechnic University | Morozov A.,Priargunsky Industrial Mining and Chemical Union JSC | Litvinenko V.,Priargunsky Industrial Mining and Chemical Union JSC
Hydrometallurgy | Year: 2016

Depletion of uranium ore deposits is leading to a need for more efficient uranium extraction techniques. In this study, gas-phase electric discharge is applied to an aqueous leaching solution dispersed between electrodes as a technique for enhancing acidic extraction of uranium. Application of the electric discharge treatment resulted in a 1.5 to 2.0 times increase in the leaching rate and an improvement in uranium recovery of 4%. The enhanced extraction method was found to involve oxidation of ferrous ions in the acidic aqueous solution by nitrogen-containing ions generated in the spark discharge channels. © 2016 Elsevier B.V. All rights reserved.

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