کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6659049 | 1425529 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Recovery of both magnesium and lithium from high Mg/Li ratio brines using a novel process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
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, CO32-, and SO42Â â, and precipitation of lithium carbonate. Factors such as water addition ratio, Mg2Â +/Al3Â + mole ratio, and lithium loss rate were investigated during MgAlCO3-LDHs production. The effects of lithium concentration and CO32Â â/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 117Â g/L to less than 0.02Â 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 CO32Â â, and 99.56% of the SO42Â â 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 27Â g/L and the CO32Â â/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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hydrometallurgy - Volume 175, January 2018, Pages 102-108
Journal: Hydrometallurgy - Volume 175, January 2018, Pages 102-108
نویسندگان
Huaiyou Wang, Yuan Zhong, Baoqiang Du, Youjing Zhao, Min Wang,