Recovery of Lithium from Brine with a High Mg/Li Ratio Using Hydroxyl-Functionalized Ionic Liquid and Tri-n-butyl Phosphate
نویسندگان
چکیده
In this study, a hydroxyl-functionalized ionic liquid 1-hydroxyethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide ([OHEMIM][NTf2]) and tri-n-butyl phosphate (TBP) were used as co-extraction reagent extractant, respectively, to improve the extraction efficiency of Li+ separation factor Li–Mg from brine with high Mg/Li ratio. The is 94.2% 539 under optimal condition. washing Mg2+ K+ close 100% using 0.6 mol L−1 LiCl 1.8 NaCl solution at an organic-to-aqueous phase ratio (O/A) 4, stripping about 98.0% 1.0 HCl agent O/A 1. reduced by less than 4.4% after seven cycles, indicating that system stable reusable.
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ژورنال
عنوان ژورنال: Journal of Sustainable Metallurgy
سال: 2021
ISSN: ['2199-3831', '2199-3823']
DOI: https://doi.org/10.1007/s40831-020-00331-1