ECOLOGIYA I STROITELSTVO

scientific peer-reviewed journal

ISSN 2413-8452

Рус | Eng

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№ 2'2016

ECOLOGY

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The main ecological aspects of the complex processing of natural phosphate raw material

Kochetkov Sergei Pavlovich, Bryl Sergei Valerevich

Kolomna Institute of Moscow Polytechnic University, Kolomna, Russia

Abstract:

In the Russian Federation a unique phenomenon of nature as the reserves of phosphate raw materials and reserves of associated components are Apatite-nepheline ores of the Khibiny Deposit, located in the Central part of the Kola Peninsula. The main consumer of this raw material are the plants basic chemistry, processing of Apatite in a wet-process phosphoric acid sulfuric acid decomposition (the city of Cherepovets, Balakovo, the resurrection, etc.). This gives a dihydrate or hemihydrate wet-process phosphoric acid, and piecework output of dry phosphogypsum is 4 to 6 t per 1 t Apatite, depending on the ratio therein of CaO/P2O5 and the method of obtaining. The problem of disposing of chemical wastes are illustrated by various examples. Provides a conclusion on the feasibility of processing into fertilizer of phosphate raw materials, and scarce Apatite – to obtain construction materials. First developed a fundamentally new, environmentally friendly technology to produce phosphoric and complex fertilizers on the basis of wet mechanical activation of the phosphate. Methods have been pilot tested in the experimental shop at Moscow Production Association «Phosphate» (Voskresensk) using (0.3 t/h) and industry – to Estimate povorotniki (Aksai) (1.0 t/h) on the basis of vibrating mills. The implementation of methods obtained new types of fertilizers: granular and suspended mechanically activated phosphates and ammophosphate. It is concluded that from the point of view of environmental safety and economic feasibility of fertilizer phosphate should be recycled raw materials, and scarce Apatite should be directed to the production of construction materials oncooking phosphate with the simultaneous extraction and recovery of rare earth elements.

Keywords:

Waste-free production, phosphogypsum, fluorine, phosphorus, nanotechnology, recycling, ecological production.

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DOI: 10.35688/2413-8452-2016-02-002

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For citations: Kochetkov S.P., Bryl S.V. The main ecological aspects of the complex processing of natural phosphate raw material // Ekologiya i stroitelstvo. 2016. № 2. Р. 9–17. doi: 10.35688/2413-8452-2016-02-002

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