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Volume 25 Issue 1
Jan.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(1): 11-19
Nathália Vieceli, Carlos A. Nogueira, Manuel F. C. Pereira, Fernando O. Durão, Carlos Guimarães,  and Fernanda Margarido, Optimization of an innovative approach involving mechanical activation and acid digestion for the extraction of lithium from lepidolite, Int. J. Miner. Metall. Mater., 25(2018), No. 1, pp. 11-19. https://doi.org/10.1007/s12613-018-1541-7
Cite this article as:
Nathália Vieceli, Carlos A. Nogueira, Manuel F. C. Pereira, Fernando O. Durão, Carlos Guimarães,  and Fernanda Margarido, Optimization of an innovative approach involving mechanical activation and acid digestion for the extraction of lithium from lepidolite, Int. J. Miner. Metall. Mater., 25(2018), No. 1, pp. 11-19. https://doi.org/10.1007/s12613-018-1541-7
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研究论文

Optimization of an innovative approach involving mechanical activation and acid digestion for the extraction of lithium from lepidolite

  • Center for Innovation, Technology and Policy Research-IN+, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisboa, Portugal

  • LNEG-Laboratório Nacional de Energia e Geologia, I.P., Campus do Lumiar, 1649-038 Lisboa, Portugal

  • CERENA-Centro de Recursos Naturais e Ambiente, DECivil, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisboa, Portugal

  • 通讯作者:

    Nathália Vieceli    E-mail: nathalia.vieceli@tecnico.ulisboa.pt

  • The recovery of lithium from hard rock minerals has received increased attention given the high demand for this element. Therefore, this study optimized an innovative process, which does not require a high-temperature calcination step, for lithium extraction from lepidolite. Mechanical activation and acid digestion were suggested as crucial process parameters, and experimental design and response-surface methodology were applied to model and optimize the proposed lithium extraction process. The promoting effect of amorphization and the formation of lithium sulfate hydrate on lithium extraction yield were assessed. Several factor combinations led to extraction yields that exceeded 90%, indicating that the proposed process is an effective approach for lithium recovery.
    • Research Article

    Optimization of an innovative approach involving mechanical activation and acid digestion for the extraction of lithium from lepidolite

    + Author Affiliations
      Abstract
    • The recovery of lithium from hard rock minerals has received increased attention given the high demand for this element. Therefore, this study optimized an innovative process, which does not require a high-temperature calcination step, for lithium extraction from lepidolite. Mechanical activation and acid digestion were suggested as crucial process parameters, and experimental design and response-surface methodology were applied to model and optimize the proposed lithium extraction process. The promoting effect of amorphization and the formation of lithium sulfate hydrate on lithium extraction yield were assessed. Several factor combinations led to extraction yields that exceeded 90%, indicating that the proposed process is an effective approach for lithium recovery.
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      • References(20)
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