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Title: TECHNOLOGY OF PROCESSING OF APATITES IN THE PRODUCTION OF FUSED PHOSPHATES AS MODERN HIGHLY EFFECTIVE FERTILIZERS
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TECHNOLOGY OF PROCESSING OF APATITES IN THE PRODUCTION OF FUSED PHOSPHATES AS MODERN HIGHLY EFFECTIVE FERTILIZERS
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1314-2704
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English
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17
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51
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Apatite is mineral - common name for a number of related minerals of the apatite group with the common formula Ca5(PO4)3(F, OH, Cl). Mmineral species in the group are fluorapatite (F - up to 3.8), chlorapatite (Cl - up to 6.8), hydroxylapatite, carbonate-apatite. Kola apatite concentrate is a promising and raw material for complex processing, allowing to produce, in addition to the basic product ? phosphoric fertilizers, strontium, rare earth elements and fluorine compounds. Despite obvious environmental expedience of complex apatite processing, at present there is the only industrial scheme, providing for extraction of rare earth elements, strontium as by-products and fluorine recovery, based on decomposition of apatite by nitric acid.
In creation of the complex phosphates processing technology it should be taken into account that apatite minerals is the main source of phosphorus in the modern industry, and its processing technology must ensure maximum extraction of this very element. As it was shown before, this can be achieved, in particular, with synthesis of glassy and melted phosphate fertilizers, used efficiently in the modern agriculture. |
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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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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939-946
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29 June - 5 July, 2017
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website
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cdrom
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4005
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apatite; phosphorite; phosphate fertilizers
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