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Recovery of both magnesium and lithium from high Mg/Li ratio brines using a novel process
Wang, Huaiyou1,2; Zhong, Yuan1,2; Du, Baoqiang1,2; Zhao, Youjing1,2; Wang, Min1,2
2018
Source PublicationHYDROMETALLURGY
Volume175Pages:102-108
SubtypeArticle
AbstractIn 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.
KeywordBrine High Mg/li Ratio Mgaico(3)-ldhs Materials Lithium Carbonate
WOS HeadingsScience & Technology ; Technology
WOS KeywordSALT LAKE BRINE ; EXTRACTION ; AVAILABILITY ; SYSTEM
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000423644800012
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6378
Collection青海盐湖研究所知识仓储
盐湖资源与化学实验室
Affiliation1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China
2.Key Lab Salt Lake Resources Chem Qinghai Prov, Xining 810008, Peoples R China
Recommended Citation
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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