Enhancing lithium leaching by mechanical activation
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 mi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Mongolian Academy of Sciences
2018-12-01
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| Series: | Mongolian Journal of Chemistry |
| Subjects: | |
| Online Access: | https://www.mongoliajol.info/index.php/MJC/article/view/1090 |
| Summary: | 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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| ISSN: | 2226-6739 2414-0082 |