RESEARCH FOR IMPROVING ENVIRONMENTAL ISSUES AND HEALTH AND SAFETY
Zhumatayeva S. Zhantasov K. Sarypbekova N. Zhantasova D. Kenzhalieva G. Bekaulova A.
February 2022Asian Research Publishing Network
ARPN Journal of Engineering and Applied Sciences
2022#17Issue 4491 - 497 pp.
Information is provided on the waste of mining and manufacturing enterprises formed during the extraction, preparation and processing of raw materials for the target products. In particular, off-balance, substandard P2O5 content, phosphate-siliceous and carbonate - siliceous phosphate ores of the Karatau basin. Materials on phosphogypsum related to the technological costs of obtaining extraction phosphoric acid (EPA) by the method of leaching sulfuric acid phosphorus by the dehydrate method are presented. The concepts of chemistry occurring in the electro thermal, in the presence of a coolant and a flux, as well as chemical, with the use of H2SO4, methods of extracting phosphorus from phosphorus-containing raw materials are given. The data of differential thermal analysis of phosphogypsum is shown. The mineralogical and chemical compositions of phosphogypsum, the main technogenic waste of the process of the dihydrate method of obtaining EPA, which in the process of storage in dump dumps can lead to a violation of the ecological equilibrium state of industrial regions in the form of dust-gaseous substances, are presented.
chemical composition , ecology , industrial waste , mineral fertilizers , off-balance ores , phosphogypsum , phosphorites fines , utilization of phosphogypsum
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M. Auezov South Kazakhstan State University, Shymkent, Kazakhstan
M. Auezov South Kazakhstan State University
10 лет помогаем публиковать статьи Международный издатель
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