SEPARATION OF CRYSTAL SILICON THROUGH METALLOTHERMAL REDUCTION

Jiyanova Sayyora Ibragimovna Turaev Khayit Khudaynazarovich Eshmurodov Khurshid Esanberdiyevich

Authors

Jiyanova Sayyora Ibragimovna Turaev Khayit Khudaynazarovich Eshmurodov Khurshid Esanberdiyevich

Keywords:

electricity, energy, quartz, quartzite, temperature, mineral, silicon, reducing, aluminum, magnesium, carbon, electric furnace.

Abstract

In this scientific research, research was carried out on the extraction of crystalline silicon by enriching and returning the sand of the "Jerdanak" quartz mine in Sherabad district of Surkhandarya region. Quartz sand without enrichment was analyzed by X-ray phase method, and the amount of silicon (IV) oxide (SiO₂) and additional substances was determined. This work presents the results of experiments on technical silicon extraction processes by enriching sand and then reducing it with aluminum and magnesium. The obtained samples were reanalyzed.

References

Figure 3. XRD analysis graph of quartz sand treated with aluminum

Analysis of results

As can be seen from the graphs above, the intensity was relatively high when the X-rays were incident at an angle of 25°-30°. It was found that the intensity at these incidence angles was 22163 in natural quartz sand, 29877 when refracted with magnesium, and 21331 when refracted with aluminum. The separation yield of technical Si was found to be 58% when reduced with magnesium and 43% when reduced with aluminum.

Si reacts with Mg at 1300℃ due to the formation of magnesium silicide, and in the reaction with Al, the yield was lower due to the lower temperature.

References:

Baranov N.N. Direct conversion of energy for autonomous energy. //Energy: economy, technology , ecology.

Strebkov D.S. The role of solar energy in future energy // M.: Energeticheskaya politika, 2005.-№°2.-С.27-36.

Kozlov A.V., Yurchenko A.V. The long-term prediction of silicon solar batteries functioning for any geographical region. // Proceedings of the 22nd European PV Solar Energy Conference and Exhibition, Milan 3-7 September 2007 pp. 3019 - 3022

Ataev.E.K . , Matyakubov A.A. , Batmanov.B.Kh . Enrichment of KARAKUM quartz sand. Mary, Turkmenistan. 2022 _ _

X. Su, Q. Wu, J. Li et al., “Silicon-based nanomaterials for lithium-ion batteries: a review,” Advanced Energy Materials, vol. 4, no. 1, article 1300882, 2014.

Abdurakhmanov B.M., Kurbanov M.Sh., Vecher A.K. Physical basis for increasing the profitability of the production of technical silicon and silicon alloys // Uzbek Physical Journal 2020. V. 22, No. 3, pp. 188-198. (10.00.00; No. 5).

Budagyan B.G., Sherchenkov A.A., Berdnikov A.E., Chernomordik V.D. High-speed method for deposition of amorphous silicon. Microelectronics, 2000, v. 29, no. 6, p. 442-448.

Saida Haouli, Said Boudebane Ian J. Slipper, Samia Lemboub, Piotr Gębara, Samiha Mezrag // Combustion synthesis silicon by of magnesiothermic reduction// https://doi.org/10.1080/10426507.2017.1416615

Azam Rasouli, Maria Tsoutsouva, Jafar Safarian, Gabriella Tranell // Kinetics of Magnesiothermic Reduction of Natural Quartz // Materials 2022, 15(19), 6535; https://doi.org/10.3390/ma15196535

Abdul Kuddus., Ataur Rahman., Abu Bakar Md. Ismail.// Possibility of Alumino-thermic Process to be Used for the Extraction of Silicon from the Sand of the Padma River//January 2017 .Conference: International Conference on Computer, Communication, Chemical, Materials and Electronic Engineering IC4ME2-2017,At: University of Rajshahi

Dietl, J., Holm, C., Sirtl, E. (1982). Aluminothermic Reduction of Quartz Sand. In: Bloss, W.H., Grassi, G. (eds) Fourth E.C. Photovoltaic Solar Energy Conference. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7898-0_154

Götze, J.; Möckel, R. Quartz: Deposits, Mineralogy and Analytics; Springer: Berlin/Heidelberg, Germany, 2012; pp. 1-360.

William B. Frank., Warren E. Haupin,, Helmut Vogt., Marshall Bruno., Jomar Thonstad., Robert K. Dawless., Halvor Kvande., Oyebode A. Taiwo// Aluminum//

First published: 15 July 2009 https://doi.org/10.1002/14356007.a01_459.pub2

Aghion, E., Golub, G. (2006). Production Technologies of Magnesium. In: Magnesium Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-30812-1_2

Andrei A. Bunaciu., Elena gabriela Udriştioiu., Hassan Y. Aboul-Enein.//X-Ray Diffraction: Instrumentation and Applications//Pages 289-299 | Published online: 21 May 2015 https://doi.org/10.1080/10408347.2014.949616

Omoniyi Kolawole Pereao. Scanning Electron Microscopy (SEM). In: Electron Microscopy of Polymers. Springer Laboratory. Springer, Berlin, Heidelberg. 2008 https://doi.org/10.1007/978-3-540-36352-1_5

Hasan Hacifazlioglu.// Enrichment of Silica Sand Ore by Cyclojet Flotation Cell//Pages 1623-1632 | Received 23 May 2013, Accepted 07 Feb 2014, Published online: 08 Jul 2014 https://doi.org/10.1080/01496395.2014.893357

Efremenkov, V.V. Integrated Approach to the Design and Construction of Enterprises and Sites for the Enrichment of Quartz Sand. Glass Ceram 71, 369-372 (2015). https://doi.org/10.1007/s10717-015-9690-x

Konev N. N.// Magnetic enrichment of quartz sands. Analysis of separator operation// November 2010. Glass and Ceramics 67(5):132-137DOI:10.1007/s10717-010-9246-z

Tafraoui A., Lebaili S., Slimani A. Res. J. Appl. Sci. 1, 1 (2006).