Recovery of both magnesium and lithium from high Mg Li ratio brines using a novel process

doi:10.1016/j.hydromet.2017.10.017

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	Recovery of both magnesium and lithium from high Mg Li ratio brines using a novel process
	Wang, Huaiyou; Zhong, Yuan; Du, Baoqiang; Zhao, Youjing; Wang, Min
第一作者	Wang, Huaiyou
	2018-01
发表期刊	HYDROMETALLURGY
ISSN	0304-386X
卷号	175 页码:102-108
摘要	In this study, an integrated process was developed to separate and simultaneously recover both magnesium and lithium from brines. This technology includes production of magnesium-aluminum-carbonate-layered double hydroxide materials (MgAlCO3-LDHs), removal of boron, CO3,(2-) and SO42-, and precipitation of lithium carbonate. Factors such as water addition ratio, Mg2+/Al3+ mole ratio, and lithium loss rate were investigated during MgAlCO3-LDHs production. The effects of lithium concentration and CO32-/2Li(+) mole ratio on lithium carbonate precipitation were also studied. It was found magnesium and lithium had been effectively separated after MgAlCO3-LDHs production. The magnesium content in brine displayed a notable decrease from 117 g/L to less than 0.02 g/L with a lithium yield more than 95.0%. To concentrate lithium and precipitate lithium carbonate, 96.46% of boron, 99.2% of the CO32-, and 99.56% of the SO42- impurities were removed from the brine by adsorption, acidification, and precipitation, respectively. The lithium yield was more than 91% when lithium concentration in brine approximated 27 g/L and the CO32-/2Li(+) mole ratio was 1.2. The purity of this product was 99.70%. Overall, this study provides an interesting vision for future integrated utilization of magnesium and lithium resources from salt lake brines with high Mg/Li ratio.
DOI	10.1016/j.hydromet.2017.10.017
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/34459
专题	盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Wang, Huaiyou,Zhong, Yuan,Du, Baoqiang,et al. Recovery of both magnesium and lithium from high Mg Li ratio brines using a novel process[J]. HYDROMETALLURGY,2018,175:102-108.
APA	Wang, Huaiyou,Zhong, Yuan,Du, Baoqiang,Zhao, Youjing,&Wang, Min.(2018).Recovery of both magnesium and lithium from high Mg Li ratio brines using a novel process.HYDROMETALLURGY,175,102-108.
MLA	Wang, Huaiyou,et al."Recovery of both magnesium and lithium from high Mg Li ratio brines using a novel process".HYDROMETALLURGY 175(2018):102-108.

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