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Literature Review and Thermodynamic Modelling of Roasting Processes for Lithium Extraction from Spodumene

Allen Yushark Fosu, Ndue Kanari

2020enlithiumspodumenethermodynamicsroasting

Abstract

Language:

This review adds to the public domain literature on the extraction of lithium from mineral ores. The focus is on the pyrometallurgical pre-treatment of spodumene. Information on the phase transformation from α to β, the heat treatment methods as well as the behavior of various compounds in the roasting processes are evaluated. Insight into the chemical thermodynamics of the baking process is evaluated using HSC Chemistry software up to 1200 ◦C. It was observed that the alkaline, sulfation, chlorination (using Cl2 and CaCl2), carbonizing (to form Li2CO3) and fluorination processes were feasible either throughout or at a point within the temperature range considered. Chlorination using KCl and carbonizing to form Li2O are the processes found to be nonspontaneous throughout the temperatures considered.

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Cite This Work

@article{85a34c79-384e-4047-ab0d-491953a1ab3a,
  title={Literature Review and Thermodynamic Modelling of Roasting Processes for Lithium Extraction from Spodumene},
  author={Allen Yushark Fosu and Ndue Kanari},
  year={2020},
  language={en}
}
TY  - JOUR
TI  - Literature Review and Thermodynamic Modelling of Roasting Processes for Lithium Extraction from Spodumene
AU  - Allen Yushark Fosu
AU  - Ndue Kanari
PY  - 2020
LA  - en
ER  -

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