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Konstantin V. FEDOTOV
Konstantin V. FEDOTOV
Professor, Ph.D., Dr.Sci.
Irkutsk National Research Technical University
Professor, Ph.D., Dr.Sci.
Irkutsk National Research Technical University
Irkutsk
Russia
103
Total cited
6
Hirsch index

Articles

Metallurgy and concentration
  • Date submitted
    2019-06-06
  • Date accepted
    2019-08-09
  • Date published
    2020-04-26

Studies of enrichment of sulfide and oxidized ores of gold deposits of the Aldan shield

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The paper presents the analysis of studies of the enrichment of sulfide and oxidized ores in Yakutia deposits. The ore of the deposit is a mixture of primary, mixed and oxidized ores. The main useful component of the studied ore samples is gold with a content of 1.5 to 2.8 g/t, the silver content is low – 5-17 g/t. Ore minerals are represented by sulfides, among which pyrite predominates. The total sulfide content does not exceed 3-5 %. The presence in the ore of free and associated gold with a grain size from fractions of a micron to 1.5 mm. Gold is represented by nuggets in intergrowth with sulfides and also forms independent inclusions. Ores are classified as easily cyanidable. It was found that the content of amalgamable gold is 10-49, the share of cyanidable gold ranges from 66.67-91, the share of refractory gold is 9.0-33.33 %, which in absolute amount equals to 0.24-0.8 g/t. The extraction of gold in gravitation concentrate varies depending on the gold content in the ore and the yield of concentrate and for ores with a gold content of 1.5-2.8 g/t from 40 to 60 %. The direct cyanidation of all studied ore samples established the possibility of extracting gold into solution up to 86.7-92.9 %, the gold content in cyanidation cakes is 0.2-0.3 g/t. Investigations of the gravitation concentrate by the method of intensive cyanidation showed that with an initial gold content of ~ 500 g/t, up to 98.9 % is extracted into the solution. The gold content in intensive cyanide cakes will be 6-15 g/t. A set of studies carried out by the authors of the article at various institutes showed that it is advisable to process ore from the deposit using cyanidation technology with preliminary gravitational extraction of gold.

How to cite: FEDOTOV P.K., SENCHENKO A.E., FEDOTOV K.V., BURDONOV A.E. Studies of enrichment of sulfide and oxidized ores of gold deposits of the Aldan shield // Journal of Mining Institute. 2020. Vol. 242. p. 218. DOI: 10.31897/PMI.2020.2.218
Without section
  • Date submitted
    2004-12-28
  • Date accepted
    2005-01-02
  • Date published
    2005-07-01

Prospects of utilization of the technogenic deposit of Dzhida tungsten-molybdenum complex

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Prospects for expansion of the initial raw material base were considered. The scheme of processing of mineral raw materials of the main tailing dump of the Dzhida tungsten-molybdenum complex was developed and tested on the laboratory equipment.

How to cite: Artemova O.S., Fedotov K.V., Belkova O.N. Prospects of utilization of the technogenic deposit of Dzhida tungsten-molybdenum complex // Journal of Mining Institute. 2005. Vol. 165. p. 22-23.
Without section
  • Date submitted
    2004-12-19
  • Date accepted
    2005-01-08
  • Date published
    2005-07-01

Prospects of processing of technogenic raw materials (on the example of gold-slag wastes from TPPs of Irkutsk region)

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The development of the fuel and energy complex of the Irkutsk region has led to the accumulation of a huge amount of ash and slag waste, which can be considered as technogenic raw materials. The development of technology for their effective processing will allow not only to obtain an economic effect, but also to reduce environmental stress in the areas adjacent to thermal power plants. The paper presents the results of the study of physical, chemical and technological characteristics of TPP wastes of the Irkutsk region and possible technologies of their complex processing.

How to cite: Vlasova V.V., Nikolskaya N.I., Fedotov K.V. Prospects of processing of technogenic raw materials (on the example of gold-slag wastes from TPPs of Irkutsk region) // Journal of Mining Institute. 2005. Vol. 165. p. 43-45.
Without section
  • Date submitted
    2004-12-27
  • Date accepted
    2005-01-17
  • Date published
    2005-07-01

Study of morphology of gold of Dzhidinsky wolframo-molybdenum combine with the purpose of its extraction

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The morphological analysis of gold from the sedimentation pond of the Dzhida tungsten-molybdenum complex was carried out. The presence of gold and its accumulations in the technogenic layer, size, shape and content, as well as the process of its formation were determined. The author proposed a technological scheme of gold extraction.

How to cite: Polinkina I.V., Fedotov K.V. Study of morphology of gold of Dzhidinsky wolframo-molybdenum combine with the purpose of its extraction // Journal of Mining Institute. 2005. Vol. 165. p. 144-145.