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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Rare Metal Extraction & Processing
Presentation Title Synthetic Alkali Aluminosilicate-hydroxide Systems as an Analog To Optimize Lithium Recovery from LCT Pegmatites
Author(s) Nail R. Zagrtdenov, Yves Thibault, Joanne Gamage McEvoy, Dominique Duguay
On-Site Speaker (Planned) Nail R. Zagrtdenov
Abstract Scope In a study focusing on alternate energy-efficient approaches to recover lithium from LCT pegmatites, we demonstrated that single-stage decomposition of α-spodumene in caustic media can be achieved below 450 °C without the conventional pretreatment at temperatures exceeding 1000 °C, typically required to induce a phase transition to the more reactive β-form (Gamage McEvoy et al., 2023. Energy Technology 2023, TMS Springer, 81-87). Considering the challenges in monitoring/characterizing the evolution of lithium, an experimental phase stability study using synthetic sodium aluminosilicates analogs along the NaAlO2-SiO2 join (e.g. carnegieite: NaAlSiO4, albite: NaAlSi3O8) exposed to melted KOH was initiated. The findings will be discussed in the context of optimizing the extent of alkali exchange and effective partitioning of silica and alumina in the solid residue that has implications for achieving selective lithium recovery in the pregnant leach solution.
Proceedings Inclusion? Planned:
Keywords Extraction and Processing, Energy Conversion and Storage, Characterization

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Investigation of the Solvometallurgical Leaching Performance of Light Rare Earth Elements in Beylikova, Eskisehir Ores
Leaching of Critical Metals from Spent Lithium-ion Battery Using Acidic Organophosphorus Extractant
Manipulating Iron Precipitation and Gold Deportment during Pressure Oxidation
Mechanochemical Extraction of Lithium from α-Spodumene at Low Temperatures
Molecular Mechanisms in Specific Separation of Late Transition Metals from Rare Earth Elements
Parameter Study for the Production of DyFe by Molten Salt Electrolysis
Purification of an Indigenous Molybdenite for Enhanced Steel Production
Rare Earth Magnet Recycling via Liquid Metal Leaching and Distillation
Recovery of Antimony from Refining Slag of the Unified Mining Company (EMUSA)
Recovery of High Purity Vanadium Salts from Bayer Liquor
Recovery of Rare Earth Sulfate Hydrates Using Antisolvent Crystallization
Selective Precipitation of Valuable Metals from Steel Slag Leach Liquor: Experimental and Theoretical Approaches
Separation of Critical Metals Using Supported Liquid Membranes PTFE-Cyanex 272
Solvent Extraction of Fe3+ with 2-Octanol from Wastewater after Gallium Recovery
Studies of Layer Growth during the Disintegration of Cemented Carbides with Vaporous Zinc
Synthetic Alkali Aluminosilicate-hydroxide Systems as an Analog To Optimize Lithium Recovery from LCT Pegmatites
Theoretical Study on the Separation of Impurity Tellurium from Crude Selenium by Vacuum Distillation
YCl36H2O Green Electro-metallurgical Preparation of Y2O3

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