Abstract
There is a large amount of spodumene deposits in Ganzi Prefecture, Sichuan Province, China. This project directly uses spodumene ore as raw material, produces aluminum–silicon alloy by electrothermal method, and then separates aluminum and silicon by three-layer liquid method to obtain 3 N high-purity silicon. Liquid aluminum is made into aluminum powder, which is transported to the place where hydrogen is required hydrogen production is carried out; the smelting dust containing 20–30% of lithium oxide is collected, and the monohydrate lithium hydroxide is prepared by the alkaline method of micro-pressure heating, and the metal lithium is produced by the electrothermal method. Hydrogen, metallic lithium and high-purity silicon are directly produced from spodumene ore, and the resources are comprehensively utilized.
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Lu, H., Neelameggham, N.R. (2023). A New Method for Producing Hydrogen, Lithium Metal, and High-Purity Silicon from Spodumene Ore. In: TMS 2023 152nd Annual Meeting & Exhibition Supplemental Proceedings. TMS 2023. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-22524-6_104
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DOI: https://doi.org/10.1007/978-3-031-22524-6_104
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