Lithium extraction from petalite ore by chloride sublimation roasting
https://doi.org/10.17073/0021-3438-2022-1-15-26
Abstract
Pilot plant tests were carried out for the technology for chloride sublimation of lithium from petalite ore with concurrent cement clinker production. Main technical and economic indicators of lithium carbonate production were determined. Chloride sublimation roasting allows combining ore roasting and lithium sublimation with the process of Portland cement clinker production (roasting). Thus, it becomes possible to distribute energy expenditure for high-temperature firing over a much larger volume of products – clinker and lithium salts. Lithium recovered in the form of lithium chloride vapors is captured by an aqueous absorption solution, which has a much smaller volume compared to the volumes of leaching solutions in lime, sulfuric acid or autoclave alkaline technologies. Correspondingly, the flows of processed solutions are reduced, which significantly saves reagents and energy during their processing and significantly reduces the capital costs of tank equipment. Due to the high content of aluminum and silicon oxides in lithium aluminosilicate ores, it is possible to use them in the production of cement clinker instead of the clay component of the charge.
About the Author
I. M. Komelin
National University of Science and Technology «MISIS»
Russian Federation
Russian Federation
Komelin I.M. – leading expert of Industrial Technology Engineering Center
119991, Russia, Moscow, Leninkii pr., 4
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Review
For citations:
Komelin I.M. Lithium extraction from petalite ore by chloride sublimation roasting. Izvestiya. Non-Ferrous Metallurgy. 2022;28(1):15-26. (In Russ.) https://doi.org/10.17073/0021-3438-2022-1-15-26
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