MAXIMIZING THE EXTRACTION OF ALUMINUM AND ITS COMPOUNDS FROM ALUMINOSILICATES: LABORATORY AND INDUSTRIAL STUDIES
Keywords:
Aluminosilicates; Chloride decomposition; Aluminum extraction; Uzbekistan clays; Alumina production; Industrial sustainabilityAbstract
The sustainable development of inorganic chemical technology is closely associated with the efficient use of natural resources and the adoption of resource-saving processing methods for local mineral raw materials. This study focuses on the comprehensive processing of Uzbekistan’s aluminosilicate rocks—such as kaolin, bauxite, and zeolite—for aluminum extraction. The chloride decomposition method was investigated as an alternative to conventional acid and alkaline processes. Laboratory experiments were conducted to evaluate the effects of temperature, chloride concentration, and processing duration on aluminum extraction efficiency. The results demonstrate that chloride decomposition provides higher aluminum yields (up to 94%) with reduced energy consumption and environmental impact compared to sulfuric acid leaching. The findings are relevant for establishing low-waste, locally sourced production technologies, contributing to Uzbekistan’s industrial independence and environmental sustainability
References
1. Akhmedov, S. (2019). Chloride decomposition of aluminosilicate rocks: Prospects and technologies. Tashkent: TCTI Press.
2. Ibragimov, R., Mirzaev, F., & Polyakov, A. (2018). Processing features of aluminosilicate clays in Uzbekistan. Journal of Chemical Technology, 12(3), 45–58.
3. Li, S. (2015). Chloride-based processing of kaolinite and bauxite: A review. Beijing: Chemical Industry Press.
4. Mirzaev, F. (2020). Technological aspects of comprehensive processing of aluminosilicate materials. Chemical Industry of Uzbekistan, 8(2), 22–34.
5. Saidov, H. (2020). Production of polyaluminum coagulants from local aluminosilicates. Journal of Water Treatment and Wastewater Purification, 14(1), 10–19.
6. Tang, Y., Chen, L., & Gao, H. (2019). Gas-phase chlorination of kaolin and zeolites for alumina production. Journal of Inorganic Materials, 34(6), 545–556.
7. Gao, H. (2021). Chloride decomposition of aluminosilicate minerals: Laboratory and industrial approaches. Materials Science Forum, 1023, 120–129.
8. Boev, M., & Kim, L. (2018). Electrowinning of aluminum from chlorinated kaolinite and bauxite: Efficiency and environmental aspects. Hydrometallurgy, 178, 75–84.
