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Citation: Lou Tai-Ping, Li Da-Gang, Pan Rong, Zhang Hui-Ping. Ion Exchange Behavior of Li2Mg2Si4O10F2, H2Mn8O16•1.4H2O and Li1.3Ti1.7Al0.3(PO4)3 in High-concentration LiCl Solution[J]. Acta Physico-Chimica Sinica, ;2003, 19(09): 839-843. doi: 10.3866/PKU.WHXB20030912 shu

Ion Exchange Behavior of Li2Mg2Si4O10F2, H2Mn8O16•1.4H2O and Li1.3Ti1.7Al0.3(PO4)3 in High-concentration LiCl Solution

1.
School of Materials and Metallurgy, Northeastern University, Shenyang　110004

Received Date: 28 March 2003
Available Online: 15 September 2003

In this paper several functional materials, such as Li2Mg2Si4O10F2 (LHT), H2Mn8O16•1.4H2O (CRYMO) and Li1.3Ti1.7Al0.3(PO4)3 (LTAP), were investigated in order to separate respectively iron, potassium and sodium impurities from the aqueous solution of high-concentration lithium chloride. The experimental results show that these functional materials have very high ion exchange selectivity to Fe3＋, K＋ and Na＋, respectively. And these functional materials are effective for the separation of impurities from high-concentration lithium chloride solution. The ion exchange behavior of these functional materials with impurities in high-concentration lithium chloride solution was analyzed and discussed. It is shown that the ion exchange kinetics of the Li2Mg2Si4O10F2, H2Mn8O16•1.4H2O and Li1.3Ti1.7Al0.3(PO4)3 with Fe3＋, K＋ and Na＋ respectively in high-concentration lithium chloride solution can be represented approximately by the equation of JMAK.
- Lithium chloride;Impurity;Functional materials;Ion exchange
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