Extraction of metals when recycling enrichment of ores

Relevance. As the enrichment does not allow achieving full disclosure of minerals, they are improved due to additional mechanical operations and chemical processing, which significantly increases the extraction efficiency. Therefore, the direction is relevant due to utilization of large amounts of substandard raw materials by leaching metals. The aim of the study is to develop the concept of mechanochemical leaching of wastes of mining and processing ores. Research methods: critical analysis of best practices in development of similar deposits on publications, laboratory studies of processes in disintegrating install. Object of the study: the combined leaching of metals from waste products using chemical reagents in the cage. The results of the study. The concept of extraction of metals is specified by the method of mechanochemical activation. It is confirmed that the mechanochemical activation allows not only extracting valuable components from waste, but also bringing them up to the required standards. The authors offered the ecological mathematical model for the effective assessing the extraction of ferrous and non-ferrous metals from waste of ores enrichment. The indicators of metal extraction from tailings of metal ores were ascertained. The technology of recycling ore enrichment allowing us to reduce the volume of storages of tails with receiving economic effect is recommended. The paper introduces the method of expanding the mineral resource base of the enterprises by production of raw materials. Conclusions. The extraction of metals to the level of unlimited use by traditional methods is impossible and has the prospects of improvement when combined with chemical technologies. Wasteless extraction of metals is possible with the use of high activation energy in such devices as the disintegrator. The practical use of mechanochemical technology to extract metals from open tailings is a reserve for expanding the raw materials base and recovery of metals production

On the issue of conversion of metal deposit development techniques

The relevance of providing industry with metals for supplying the needs of population increases in radical changes in the economic system and continuous deterioration of conditions for exploring mineral deposits using the underground method. The aim of the research is to substantiate the appropriateness of organizational-economic and production-technological measures to convert mining industry to innovative techniques in mineral deposits exploration by the underground method. Research methods include the analysis of international experience and literature, obtaining and processing data based on multiple regression and correlation analysis, pilot plant testing of alternative technologies. Results. It was ascertained that the directions of mining industry conversion include application of solid mixtures for laying-out space and leaching of metals from ores. It is shown that the environmental concept of technological upgrading consists in transferring the processing of the main volume of ores into underground conditions; the efficiency of utilization of tailings consists in reducing the level of damage from tailings, the value of metals and non-metals obtained in processing, raw materials for construction industry and associated commercial products. The feasibility of development of conversion technologies is determined by the ratio of the compensation of costs and damages from waste storage, production capacity of the disposal enterprise and its technological level. Diversification of mining production to underground mining of deposits in near-term perspective requires the correction in engineering support of mining on mountain specialties. Production activities of mining engineers is related to the efficient use of resources, therefore, a mining engineer should be a technologist and processor, hydrogeologist, ecologist, etc. Conversion of technologies is implemented, provided that: the efficiency of ore extraction is based on the value of recoverable and not recoverable metals, and taking into account the effective quantity of damage to the environment. Conclusions: restoration of mining industry potential depends on implementation of innovative technologies, provided adequate engineers of the new generation

On the issue of conversion of metal deposit development techniques

Актуальность проблемы обеспечения промышленности металлами для удовлетворения нужд населения повышается в условиях радикальных изменений в системе хозяйствования и продолжающегося ухудшения условий разработки месторождений полезных ископаемых подземным способом. Цель работы: обоснование целесообразности организационно-экономических и производственно-технологических мероприятий по переходу горной отрасли на инновационные технологии разработки месторождений полезных ископаемых подземным способом. Методы исследования включают в себя анализ мирового опыта и литературных публикаций, получение и обработку данных на основе множественного регрессионного и корреляционного анализа, полупромышленные испытания вариантов альтернативных технологий. Результаты. Определено, что направления конверсии горного производства включают в себя применение твердеющих смесей для закладки выработанного пространства и выщелачивание металлов из руд. Показано, что природоохранный концепт технологического перевооружения состоит в перенесении процессов переработки основного объема руд в подземные условия; эффективность утилизации хвостов обогащения складывается из снижения величины ущерба от хранения хвостов, стоимости полученных при переработке металлов и неметаллов, сырья для строительной индустрии и попутной товарной продукции. Целесообразность освоения конверсионных технологий определяется соотношением компенсационных затрат и ущерба от хранения отходов, производственной мощности утилизирующего предприятия и его технологического уровня. Отмечено, что диверсификация горного производства на подземную разработку месторождений в близкой перспективе требует корректировки инженерного обеспечения горных работ по горным специальностям. Производственная деятельность горных инженеров связана с эффективностью использования природных ресурсов, поэтому горному инженеру надо быть технологом-переработчиком, гидрогеологом, экологом и т. д. Конверсия технологий реализуется при условии: эффективность добычи руд определяется с учетом ценности извлекаемых и не извлекаемых металлов, а также с учетом величины действительного ущерба окружающей среде. Выводы: восстановление потенциала горной отрасли зависит от реализации инновационных технологий при условии надлежащего обеспечения специалистами нового поколения.The relevance of providing industry with metals for supplying the needs of population increases in radical changes in the economic system and continuous deterioration of conditions for exploring mineral deposits using the underground method. The aim of the research is to substantiate the appropriateness of organizational-economic and production-technological measures to convert mining industry to innovative techniques in mineral deposits exploration by the underground method. Research methods include the analysis of international experience and literature, obtaining and processing data based on multiple regression and correlation analysis, pilot plant testing of alternative technologies. Results. It was ascertained that the directions of mining industry conversion include application of solid mixtures for laying-out space and leaching of metals from ores. It is shown that the environmental concept of technological upgrading consists in transferring the processing of the main volume of ores into underground conditions; the efficiency of utilization of tailings consists in reducing the level of damage from tailings, the value of metals and non-metals obtained in processing, raw materials for construction industry and associated commercial products. The feasibility of development of conversion technologies is determined by the ratio of the compensation of costs and damages from waste storage, production capacity of the disposal enterprise and its technological level. Diversification of mining production to underground mining of deposits in near-term perspective requires the correction in engineering support of mining on mountain specialties. Production activities of mining engineers is related to the efficient use of resources, therefore, a mining engineer should be a technologist and processor, hydrogeologist, ecologist, etc. Conversion of technologies is implemented, provided that: the efficiency of ore extraction is based on the value of recoverable and not recoverable metals, and taking into account the effective quantity of damage to the environment. Conclusions: restoration of mining industry potential depends on implementation of innovative technologies, provided adequate engineers of the new generation