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Citation: DONG Dian-Quan, ZHANG Feng-Bao, ZHANG Guo-Liang, LIU Yi-Fan. Synthesis of LiAlTiO₄ and Its Selectivity to Li⁺ Exchange[J]. Chinese Journal of Applied Chemistry, ;2005, 22(7): 754-758. shu

Synthesis of LiAlTiO₄ and Its Selectivity to Li⁺ Exchange

1.
a School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072;
2.
b Qingdao University of Science and Technology, Qindao

Corresponding author: ZHANG Feng-Bao,
Received Date: 10 September 2004
Available Online: 2 December 2004
Fund Project: 国家自然科学基金资助项目(29376245) (29376245)山东省科技厅资助项目(03110102) (03110102)

The ion-exchanger LiAlTiO₄ of spinel type was prepared by means of the common precipitation/hydrothermal crystallization method,then was acid-modified.Its ion-exchange proporties for alkali ions such as saturation capacity of exchange,distribution coefficient and the pH titration curve were determind.LiAlTiO₄ was characterized by virtue of X-ray diffraction method.The acid treatment of LiAlTiO₄ causes Li⁺ extraction ratio to change from 28% to 72%,while the dissolution of Al is less than 6.8%.This inorgnic ion-exchanger (LiAlTiO₄-700) has the saturation capacity of exchange for Li higher than those for other alkali ions,the saturation capacity of exchange for Li⁺ reaches to 4.29 mmol/g (30.03 mg/g);LiAlTiO₄-700(H) has a higher selectivity of ion exchange for Li⁺ than for other alkali ions.These result show LiAlTiO₄-700(H) has better memory and selectivity of ion exchange,and higher capacity of ion exchange for Li⁺.It is a kind of prospective ionic sieve for Li⁺.
- complex oxide,
- lithium,
- ion exchange,
- inorganic ion exchanger,
- spinel type
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Synthesis of LiAlTiO4 and Its Selectivity to Li+ Exchange

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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Synthesis of LiAlTiO₄ and Its Selectivity to Li⁺ Exchange