Extraction Kinetics of Silicon, Aluminum, and Calcium from Dubersay Basalt by Electric Smelting
Viktor Mikhailovich Shevko1, Alexandra Dmitrievna Badikova2, Gulnara Ergeshovna Karataeva3, Mustafa Azatovich Tuleev4
1Viktor Mikhailovich Shevko, Metallurgy Department South Kazakhstan State University named after M.Auezov, Shymkent, Kazakhstan. Email: shevko.v.m@mail.ru.
2Alexandra Dmitrievna Badikova, Metallurgy department South Kazakhstan State University named after M.Auezov, Shymkent, Kazakhstan.
3Gulnara Ergeshovna Karataeva, Metallurgy department South Kazakhstan State University named after M.Auezov, Shymkent, Kazakhstan.
4Mustafa Azatovich Tuleev, Metallurgy department South Kazakhstan State University named after M.Auezov, Shymkent, Kazakhstan.
Manuscript received on July 20, 2019. | Revised Manuscript received on August 10, 2019. | Manuscript published on August 30, 2019. | PP: 4566-4570 | Volume-8 Issue-6, August 2019. | Retrieval Number: F8877088619/2019©BEIESP | DOI: 10.35940/ijeat.F8877.088619
Open Access | Ethics and Policies | Cite | Mendeley
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This article presents experimental results of extraction of silicon, aluminum into ferrous alloys and calcium into calcium carbide by electric smelting of basalt from Dubersay deposit. The studies were performed using thermodynamic simulation and electric smelting in arc furnace. The thermodynamic simulation was performed using HSC-5.1 software based on the principle of minimum Gibbs energy. The studied blend was smelted in one-electrode lined arc furnace. The experimental results of extraction of silicon, aluminum, and calcium from Dubersay basalt demonstrated that under equilibrium conditions, interaction of basalt with carbon and iron was accompanied by formation of Ca Si O3, Al2SiO3, Fe Si, SiO2, Si C, Ca Si, Na2SiO3, Si O(g), Si(g), CaC2, Ca O, Ca(g), Al2O3, Al, Al(g). During electric smelting of basalt it was detected that without lime silicon and aluminum were maximally extracted into alloy, and calcium into calcium carbide – in 30-45 min, herewith, the maximum extraction rate (76.5%) was observed for silicon extraction into alloy, and the minimum rate (65.3%) – for calcium extraction into carbide; when 25% of lime were added to basalt, the rate of calcium extraction into calcium carbide increased to 87.3% with simultaneous decrease in the rates of silicon and aluminum extraction into alloy to 71.4% and 60%; respectively; in order to achieve the rate of silicon and aluminum extraction into alloy of 76.1-76.8% and 70.0-72.4%, respectively, and of calcium into calcium carbide of 77-79.4% with production of calcium carbide of 235-239 dm3/kg, the electric smelting of basalt should be performed with 7.3-11.2% of lime from basalt weight in 36.2-33.9 min.
Keywords: Basalt, calcium carbide, electric smelting, ferrous alloy.