PROCESS OF OBTAINING HIGH SILICON KAOLIN FROM LOCAL RAW MATERIALS AND OBTAINING ALUMINUM OXIDE FROM IT
Keywords:
kaolin, aluminum oxide, thermal treatment, clay soil, diffraction, regeneration.Abstract
There are sources of raw materials in the form of kaolin clays, alunite rocks, low-grade bauxites and coal ash. The richest deposits of kaolin clay, suitable for processing aluminum raw materials, are located in the territory of the city of Angren, their total reserves amount to more than one billion tons. This stone can be mined in open pit. The average thickness of mineral deposits is 30-40 m. In the production of aluminum, it is necessary to deiron acid solutions of aluminum and convert purified solutions into aluminum oxide, use or process their solutions, and develop an effective technology for obtaining aluminum oxide from raw materials containing aluminum with a high silicon content.
References
Kaolin // Great Soviet Encyclopedia: [in 30 volumes] / ch. ed. A. M. Prokhorov. — 3rd ed. - M.: Soviet Encyclopedia, 1969-1978.
Course of deposits of non-metallic minerals, ed. P. M. Tatarinova, M., 1969. V. P. Petrov.
Glinka K.D. Kaolin clays of the Voronezh province. Voronezh. 1919.
Zemyatchensky “Kaolinite formations of Southern Russia” // Protok. meeting Council of St. Petersburg. un-ta. 1897. No. 52. Appendix. 10. pp. 46-48.
Zemyatchensky P.A. On the issue of changes undergone by kaolinite when heated // Ibid. pp. 41-48.
Zemyatchensky P. A. On the issue of chemical changes in kaolinite at high temperatures // Izv. Institute of Phys.-Chem. analysis. 1924. T. 2. Issue. 2. pp. 499-500.
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