Enhancing lithium leaching by mechanical activation

Autor: Nader Setoudeh, Ataollah Nosrati, Nicholas J Welham
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Mongolian Journal of Chemistry, Vol 19, Iss 45, Pp 44-48 (2018)
Druh dokumentu: article
ISSN: 2226-6739
2414-0082
DOI: 10.5564/mjc.v19i45.1090
Popis: The lithium (Li) bearing minerals lepidolite and spodumene were mixed with different mass ratios of Na2SO4 and mechanically activated by milling in a planetary ball mill for 5 h. The milled samples were studied using thermogravimetry under an air atmosphere up to 950 ºC. Isothermal heating of the milled samples was undertaken in a furnace at temperatures of 700 ºC and 800 ºC for 1 h. Hot water leaching of the calcines indicated that increasing the calcination temperature had a significant effect on the dissolution of lithium. The leaching of lithium from lepidolite was notably higher than that from spodumene.
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