Tang Dahai, Zhou Jiabei, Zhou Dali, Yao Qianqian, Zhang Liyuan. Preparation of H2TiO3 Lithium-ion Adsorbent Using Ti-rich Material and Its Adsorption Performance Study[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 53-58. doi: 10.7513/j.issn.1004-7638.2017.02.009
Citation:
Tang Dahai, Zhou Jiabei, Zhou Dali, Yao Qianqian, Zhang Liyuan. Preparation of H2TiO3 Lithium-ion Adsorbent Using Ti-rich Material and Its Adsorption Performance Study[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 53-58. doi: 10.7513/j.issn.1004-7638.2017.02.009
Tang Dahai, Zhou Jiabei, Zhou Dali, Yao Qianqian, Zhang Liyuan. Preparation of H2TiO3 Lithium-ion Adsorbent Using Ti-rich Material and Its Adsorption Performance Study[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 53-58. doi: 10.7513/j.issn.1004-7638.2017.02.009
Citation:
Tang Dahai, Zhou Jiabei, Zhou Dali, Yao Qianqian, Zhang Liyuan. Preparation of H2TiO3 Lithium-ion Adsorbent Using Ti-rich Material and Its Adsorption Performance Study[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 53-58. doi: 10.7513/j.issn.1004-7638.2017.02.009
β-Li2 TiO3 was synthesized as precursor of the lithium-ion adsorbent via solid-phase reaction using Ti-rich material as titanium source,which was prepared by purification of melt-separated titanium slag.H2 TiO3 lithium-ion adsorbent was finally obtained after extracting Li+ from the precursor Li2 TiO3 via acid treatment.The synthesis temperature of precursor Li2 TiO3 was investigated and the adsorption properties of the adsorbent were studied using adsorption kinetics model and Langmuir adsorption isotherm equation.Precursor β-Li2 TiO3 with good crystallization was obtained at 750 °C.In LiOH solution with 2 g/L of Li+ concentration, Li+ adsorption capacity of the adsorbent reached 28.51 mg/g.Li+ adsorption capacity increased with increase in alkalinity and Li+ concentration of the solution.The theoretical maximum adsorption capacity calculated by Langmuir equation was 45.6 mg/g for the obtained adsorbent.
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