Urgench State University (Urgench, Uzbekistan):

Babaev Z. К., Professor, Doctor of Engineering Sciences
Matchonov Sh. K., Associate Professor, Candidate of Engineering Sciences, mbsh76@mail.ru
Matchonov Sh. Sh., Student

Karakalpak State University (Nukus, Uzbekistan):

Kudiyarova K. K., Assistant

This article presents research aimed at discovering new deposits of silicate raw materials, including low-melting compounds, in compliance with the specifications of respective production plants and applicable standards. It describes the characteristics of the feldspar of the Sultan-Uvaiskoe deposit in Uzbekistan and studies its chemical and mineral compositions in full. It has been found that the feldspar at the Sultan-Uvaiskoe deposit consists of microcline (65–67 wt%), albite (27–28 wt%), apatite (1–2 wt%), and quartz (5–6 wt%). The analysis results obtained indicate the following chemical composition: SiO₂ at 68.57 wt%; TiO₂ at 0.01 wt%; Al₂O₃ at 16.81 wt%; Fe₂O₃ at 0.07 wt%; FeO at 0.12 wt%; MgO at 0.3 wt%; MnO at 0.01 wt%; CaO at 0.55 wt%; Na₂О at 2.92 wt%; K₂O at 9.98 wt%; P₂O₅ at 0.15 wt%; LOI at 0.51 wt%. The paper also contains the data obtained by feldspar electron microscopic imaging, X-ray diffraction analysis, and infrared spectroscopy, as well as the data on its granule composition, physical and chemical properties, collected with the application of advanced research methods. The paper theoretically studies and substantiates industrial usability of feldspar from the Sultan-Uvaiskoe deposit. Its qualitative characteristics have been established through physical and chemical analyzes and compared against the requirements of applicable standards. The results suggest that this raw material may be used to manufacture glass, glass enamels, glazes, porcelain, and other silicate-based products. A process flow diagram is presented for the processing of feldspar from the Sultan-Uvaiskoe deposit.

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