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Frontiers of Chemical Science and Engineering

2014, Volume 8,  Issue 4, Pages 471-477
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    Preparation and characterization of lithium

    1. College of Marine Science & Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.2. College of Material Science & Chemical Engineering, Tianjin University of Science & Technology, Tianjin 300457, China

    Accepted： 2014-12-11 Available online：2015-01-14
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    10.1007/s11705-014-1449-3
    Cite this article
    Chang WANG,Yanlong ZHAI,Xi WANG,Ming ZENG.Preparation and characterization of lithium [J].Frontiers of Chemical Science and Engineering,2014,8(4):471-477.

    Abstract

    Lithium -MnO ion-sieves were prepared from spinel LiMn O via treatment with nitric acid. The LiMn O was synthesized by a solid state reaction between LiOH·H O and MnO . The effects of the calcination time and temperature on the preparation of the LiMn O precursor and the lithium ion-sieve were investigated. In addition, the Li extraction ratio, the Mn dissolving ratio and the adsorption properties of the lithium ion-sieve were all measured. The lithium ion-sieve had a high exchange capacity and was selective for Li . Specifically, at pH= 13, the ion exchange capacity of Li was 30.9 mg/g in 10 mmol/L LiCl solution and the lithium extraction ratio and manganese dissolving ratio were 95% and 25%, respectively.

    Keywords

    lithium ion-sieve ; solid state reaction ; adsorption ; LiMn2O4
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