Studying of The Process of Obtaining Monocalcium Phosphate based on Extraction Phosphoric Acid from Phosphorites of Central Kyzylkum

Authors

  • Mokhichekhra Shaymardanova Department of Chemical Technology, Termez Institute of Engineering and Technology, Termez 190100, Uzbekistan.
  • Kholtura Mirzakulov Department of Chemical Technology, Faculty of Chemical Technology, Tashkent Institute of Chemical Technology, Tashkent, 100011, Uzbekistan.
  • Gavkhar Melikulova Department of Chemical Technology, Faculty of Chemical Technology, Tashkent Institute of Chemical Technology, Tashkent, 100011, Uzbekistan.
  • Sakhomiddin. Khodjamkulov Department of Chemical Technology, Termez Institute of Engineering and Technology, Termez 190100, Uzbekistan.
  • Abror Nomozov Department of Chemical Technology, Termez Institute of Engineering and Technology, Termez 190100, Uzbekistan. https://orcid.org/0000-0003-0409-8247
  • Oybek Toshmamatov Department of Chemical Technology, Termez Institute of Engineering and Technology, Termez 190100, Uzbekistan.

DOI:

https://doi.org/10.21123/bsj.2024.9836

Keywords:

Phosphorites of Central Kyzylkum, extraction phosphoric acid, monocalcium phosphate,, X-ray, IR spectrum, scanning electron microscopic

Abstract

In this paper, a study of monocalcium phosphate production based on extractable phosphoric acid obtained from Central Kyzyl-Kum phosphorites was conducted. Effects of various parameters (density, temperature, and viscosity of starting materials) on the process of defluoridation and desulfation of extraction phosphoric acid and production of monocalcium phosphate based on calcium carbonate were studied. The experiments were mainly conducted on two samples, and the composition of the substances before and after the process was studied. According to the results, the contents of other components also increase proportionally (sample 1). Thus, the content of calcium oxide increases from 1.58% to 5.54% with a content of 60% P2O5, magnesium from 0.49% to 1.15%, iron oxide from 0.25% to 0.85%, aluminum oxide from 0.38% to 1.24%, sulfate ions from 0.23% to 0.76%, the content of calcium oxide increases from 2.09% to 7.40% with a content of 60% P2O5, magnesium from 0.80% to 2.83%, iron oxide from 0.25% to 0.90%, aluminum oxide from 0.38% to 1.34%, sulfate ions from 0.23% to 0.82%. The fluorine content decreases from 0.32% to 0.17% depending on the EPA concentration (sample 2). Some factors, such as the rate and concentration of phosphoric acid and high-speed separation of phosphoric acid, were also studied in the process of obtaining monocalcium phosphate and its chemical composition and properties. The results obtained based on both samples were studied and analyzed using X-ray, IR spectrum, scanning electron microscopic, and elemental analysis.

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Studying of The Process of Obtaining Monocalcium Phosphate based on Extraction Phosphoric Acid from Phosphorites of Central Kyzylkum. Baghdad Sci.J [Internet]. [cited 2024 Nov. 21];22(1). Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/9836