CHEMICAL–MINERALOGICAL CHARACTERIZATION AND DRY BENEFICIATION TECHNOLOGY OF FELDSPAR FROM THE SULTAN UVAYS DEPOSIT
DOI:
https://doi.org/10.5281/zenodo.19995639Keywords:
feldspar, magnetic separation, electrostatic separation, X-ray diffraction analysis, IR spectroscopy, BGMN/Profex Rietveld refinement, glass industry, Lower Amu Darya.Abstract
This article presents a study of the chemical–mineralogical composition, granulometric distribution, and physicochemical
properties of feldspar raw material obtained from the Sultan Uvays deposit located in the Republic of Karakalpakstan, Lower Amu
Darya region.
According to the results of X-ray diffraction analysis, the sample predominantly consists of microcline (60–65%), albite (21–25%),
quartz (7–10%), and calcite (2–3%).
To obtain a concentrate suitable for the glass industry, a four-stage dry beneficiation technology has been developed and experimentally
tested. This process includes magnetic separation (H = 80–1300 kA/m) and electrostatic separation methods.
The beneficiation results demonstrate that the SiO₂ content in the feldspar fraction increased from 68.44 wt.% to 74.60 wt.%, while the
total iron content (Fe₂O₃ + FeO) decreased from 0.29 wt.% to 0.01 wt.%.
The obtained results confirm that feldspar from the Sultan Uvays deposit meets the requirements of GOST 22557-2019 and can be
widely used as an independent raw material in the production of glass and enamel coatings
References
Hafner, S. The crystal chemistry of the common rock-forming silicates. // Mineralogical Magazine. – 2019. – Vol. 83,
No. 4. – P. 571–589.
Andreev, A.V., Kostychev, I.A. Ispolzovaniye polevykh shpatov v steklokeramicheskoy promyshlennosti. // Steklo i
keramika. – 2021. – No. 3. – P. 14–20.
Yusupov, O‘., Xolmatov, B. O‘zbekiston mineral resurslarining sanoatdagi o‘rni. – Toshkent: Fan, 2020. – 312 p.
Bolen, W.P. Feldspar and nepheline syenite: USGS Minerals Yearbook. – Washington: USGS, 2022. – P. 26.1–26.5.
Wills, B.A., Finch, J.A. Wills’ Mineral Processing Technology. 8th ed. – Oxford: Butterworth-Heinemann, 2016. – 512 p.
Ferreira, O.P., Alves, O.L. Dry magnetic separation of feldspar from quartz: effects of particle size and field intensity. //
Minerals Engineering. – 2018. – Vol. 121. – P. 155–162.
Döbelin, N., Kleeberg, R. Profex: a graphical user interface for the Rietveld refinement program BGMN. // Journal of
Applied Crystallography. – 2015. – Vol. 48. – P. 1573–1580.
Buranova, D.B. Main characteristics of quartz-feldspar sands from the Khiva deposit, and the physico-chemical and
technological fundamentals of obtaining an enriched concentrate. // Kompleksnoe Ispolzovanie Mineralnogo Syra. –
– Vol. 340, No. 1. – P. 37–44.
GOST 22557-2019. Polevye shpaty dlya stekol’noy promyshlennosti. – Moskva: Standartinform, 2019. – 18 p.
Redfern, S.A.T. The thermodynamics of calcite decomposition. // Contributions to Mineralogy and Petrology. – 2016.
– Vol. 171. – P. 1–12.
Sitarz, M., Mozgawa, W., Handke, M. Vibrational spectra of complex ring silicate anions: method of recognition. //
Journal of Molecular Structure. – 2017. – Vol. 1135. – P. 184–190.
Zhang, G., Gao, J. Thermal phase transformations in potassium feldspar studied by differential thermal analysis. //
Journal of the European Ceramic Society. – 2020. – Vol. 40, No. 3. – P. 772–778.
Babayev, Z.K., Masharipova, S.M., Buranova, D.B., & Ataeva, F.A. Improving the stability of restoration inorganic wall
materials in the monuments of ancient Khiva. // Austrian Journal of Technical and Natural Sciences. – 2021. – No.
–2. – P. 49–53.
Buranova, D.B., Yunusov, M.Y., Babaev, Z.K., Kurambaev, Sh.R., & Atashev, E.A. The physico-chemical analysis of
quartz sand of Khiva deposit. // RA Journal of Applied Research. – 2023. – Vol. 9, No. 10. – P. 506–509.
Dunham, S., Komar, D. Flotation reagent consumption and waste production in silicate mineral processing. // Minerals.
– 2020. – Vol. 10, No. 7. – P. 621.
Karimov, N.X., Toshmatov, E.N. Quruq boyitish texnologiyalari va ularning sanoatda qo‘llanilishi. // O‘zbek kimyo
jurnali. – 2022. – No. 2. – P. 44–52.
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