机械活化强化锂浸出

Q4 Chemistry

Mongolian Journal of Chemistry Pub Date : 2018-12-28 DOI:10.5564/MJC.V19I45.1090

Nader Setoudeh, A. Nosrati, N. Welham

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引用次数: 6

摘要

将含锂矿物锂云母和锂辉石与不同质量比的Na2SO4混合，并通过在行星球磨机中研磨5小时进行机械活化。在高达950ºC的空气气氛下使用热重分析法研究研磨的样品。在700ºC和800ºC的熔炉中对研磨样品进行等温加热1小时。煅烧物的热水浸出表明，提高煅烧温度对锂的溶解有显著影响。锂云母对锂的浸出率明显高于锂辉石。

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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 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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来源期刊

Mongolian Journal of Chemistry Materials Science-Materials Chemistry

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

20 weeks