MECHANOCHEMICAL TECHNOLOGY OF METALMINING FROM ENRICHING TAILS

Известия Томского политехнического университета: Инжиниринг георесурсов

Yuri I. Razorenov¹  Olga G. Burdzieva²  Vladimir I. Golik³ 

[1] Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences;Geophysical Institute ofVladikavkaz Scientific Center of the Russian Academy of Sciences;South-Russian State Polytechnic University;

关键词: experiment;    metal;    tailings;    leaching;    disintegrator;    mechanochemistry;   

DOI  :  10.18799/24131830/2020/6/2687

来源: DOAJ

【 摘 要 】

The relevance and aim of the study. The aim of the study is to establish the relationship between the parameters of leaching technology and metal extractionefficiency. The article is devoted to the problem of improving the technology for extracting metals from products of primary processing of metal ores as a part of the non-waste recycling of tailings. Its relevance is caused by a global trend – transition to «sustainable geotechnologies», one of the directions of which is to expand the scope of use of technogenic raw materials, and the experience of waste-free tailings disposal is relatively small. Methodology. In the experiments, a unified methodology of the technological process with mathematical planning was applied. For formation of a regression surface in three-dimensional form, the procedure of strict interpolation algorithms was used. The results of experimental substantiation of the possibility of leaching metals from mineral waste from enrichment tailings using a Russian-made disintegrator are presented. The area of ​​effective application of technologies for disposal of substandard metal-containing mineral raw materials is determined by modeling technological and economic indicators, taking into account the cost of each component of the leachate solution, as well as the costs associated with increasing the duration of the process. It was shown that the efficiency of utilizing tailings depends on the extent to which leaching technology is used at the stages from production to metallurgical processing, and the concept of the effectiveness of the new technology consists in generating income from an increase in the number of commercial products due to the utilization of raw materials that are substandard in terms of metal content. It was determined that the complexity of the use of subsurface resources can be improved by isolating a larger proportion of metals in the leaching of enrichment tailings in the disintegrator. Conclusions. The implementation of the technology ensures the involvement of dead mineral resources in the production and creates a new raw material base for sustainable development of the domestic mining and metallurgical complex. It is recommended that further studies of the parameters of non-waste metal leaching be concentrated in the field of identifying the joint effect of the proportion of the solution and the mass content of reagents in the enriched pulp on the efficiency of the process.

【 授权许可】

Unknown