Synthesis of Manganese Oxide Sorbent for the Extraction of Lithium from Hydromineral Raw Materials
Karshyga Z. Yersaiynova A. Yessengaziyev A. Orynbayev B. Kvyatkovskaya M. Silachyov I.
December 2023Multidisciplinary Digital Publishing Institute (MDPI)
Materials
2023#16Issue 24
The article presents the research results for the synthesis of inorganic sorbents based on manganese oxide compounds. It shows the results of the lithium sorption from brines with the use of synthesized sorbents. The effect of temperature, the molar ratio of Li/Mn, and the duration for obtaining a lithium-manganese precursor and its acid treatment was studied. The sorption characteristics of the synthesized sorbents were studied. The effect of the ratio of the sorbent mass to the brine volume and the duration of the process on the sorption of lithium from brine were studied. In this case, the sorbent recovery of lithium was ~86%. A kinetic model of the lithium sorption from brine on a synthesized sorbent was determined. The kinetics of the lithium sorption was described by a pseudo-second-order model, which implies limiting the speed of the process due to a chemical reaction.
brines , calcination , lithium , precursor , sorbents , synthesis
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The Institute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty, 050013, Kazakhstan
The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
The Institute of Metallurgy and Ore Beneficiation
The Institute of Nuclear Physics
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