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Title: ASSESSMENT OF THE EFFICIENT APPLICATIONS OF KARELIA?S TALC-BEARING ROCKS BASED ON GEOLOGO-TECHNOLOGICAL DATA
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ASSESSMENT OF THE EFFICIENT APPLICATIONS OF KARELIA?S TALC-BEARING ROCKS BASED ON GEOLOGO-TECHNOLOGICAL DATA
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1314-2704
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English
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19
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1.3
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The possible efficient application of Karelia?s talc-bearing rocks is assessed. Two groups of talc-bearing rocks: 1) talc ores subjected to flotation dressing for talc production and 2) soapstone containing chlorite, which, like talc, forms foliated-imbricate aggregates and is hard to separate upon dressing. High-quality reagent-free micronized concentrate (microtalc), which can be used for the production of technical rubber articles, plastics and ceramics, was produced using a flow chart developed for Svetloozersk talc ores (flotation-magnetic dressing and micronization). The mineral and chemical composition of talc-bearing rocks was analyzed and phase formation upon their thermal treatment was studied using electron microscopy, X-ray phase analysis and derivatography. These rocks were found to be a promising raw material for the production of highly durable ceramic facing tiles and heat-insulating material. The results of the study of heat-resistant materials from fine-fractional talco-chlorite schists (overburden of the Kostomuksha iron deposit) with various binders, such as Cambrian clay, Portland cement and liquid glass, used to reduce the cost of stationary furnace-type heat accumulators are reported.
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conference
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19th International Multidisciplinary Scientific GeoConference SGEM 2019
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19th International Multidisciplinary Scientific GeoConference SGEM 2019, 30 June - 6 July, 2019
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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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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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743-750
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30 June - 6 July, 2019
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website
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cdrom
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5287
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talc 1; soapstone 2; flotation-magnetic dressing3; talco-chlorite 4; microtalc 5.
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