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Title: CHEMICAL AND MINERALOGICAL CHARACTERISTICS OF TECHNOGENIC RAW MATERIALS OF MINING ENTERPRISES OF KAZAKHSTAN
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CHEMICAL AND MINERALOGICAL CHARACTERISTICS OF TECHNOGENIC RAW MATERIALS OF MINING ENTERPRISES OF KAZAKHSTAN
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1314-2704
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English
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20
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5.1
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The article summarizes the total number of technogenic mineral formations in Kazakhstan, which occupies the 9th place in the world over the territory, which has huge mineral reserves. The presented material gives the properties of the waste, its particle size distribution, storage conditions, as well as the approximate volume of secondary raw materials.
The integrated use of mineral resources is a very difficult task, including technical, economic and environmental issues, the solution of which requires the joint work of scientists, designers and production workers. This waste causes enormous damage to the environment, occupy large areas, which is the main area of human activity, ensuring the implementation of the tasks of increasing the economic potential and environmental safety of the country. In the 21st century, the volume of waste generated continues to increase. The huge scale of construction in Kazakhstan requires a significant amount of mineral raw materials for the building materials industry. Intensification in this direction involves the use of industrial waste instead of primary natural resources in order to reduce the cost of building materials. Mining waste is more economical compared to the production of building materials based on special extraction of mineral raw materials. According to the cadastre, the annual output of all types of technogenic mineral formations is approximately 250 million tons, of which: -74% dumps of overburden and mining works; -24% tailings for mineral processing; -2% slag during metallurgical processing. The total annual level of their consumption is about 11% of the annual output. The study of the chemical and mineralogical composition of technogenic mineral formations of mining enterprises of Kazakhstan by well-known methods described in works involving classical and modern physicochemical analysis, taking into account the specificity of a specific technogenic raw material. More than 80% of the removed mass of rock is suitable only for filling up worked out spaces, building temporary roads and other structures. Enrichment waste with a grain size of 0.14-5.0 mm is used as a filler. Polymetallic ore dressing waste consists mainly of dolomite 50-60%, calcite 10-15%, barite 10-20% and clay substances 5-8%, ore minerals 2-3%. |
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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139-148
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18 - 24 August, 2020
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website
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cdrom
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7293
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waste; chemical and mineral composition; mines; combines.
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