Soft Chemical Synthesis and Adsorption Properties of MnO2•0.5H2O, a High Performance Ion Sieve for Lithium

Acta Chimica Sinica ›› 2007, Vol. 65 ›› Issue (12): 1135-1139. Previous Articles Next Articles

Original Articles

高效锂离子筛吸附剂MnO₂•0.5H₂O的软化学合成及吸附性能研究

王禄, 马伟*, 韩梅, 孟长功

(大连理工大学化学系海水淡化与资源化开发研究中心大连 116024)

投稿日期:2006-07-29 修回日期:2007-01-12 发布日期:2007-06-28
通讯作者: 马伟

Soft Chemical Synthesis and Adsorption Properties of MnO₂•0.5H₂O, a High Performance Ion Sieve for Lithium

WANG Lu; MA Wei*; HAN Mei; MENG Chang-Gong

(Chemistry Department of Dalian University of Technology, the Developmental Centre of Seawater Desalination and Multi-Purpose Utilization, Dalian 116024)

Received:2006-07-29 Revised:2007-01-12 Published:2007-06-28
Contact: MA Wei

Abstract

The precursor Li_1.6Mn_1.6O₄of lithium ion sieve was prepared with a selective starting reagents MnCl₂•4H₂O and LiOH•H₂O by soft chemistry route such as sol-gel, hydrothermal and heat treatment. After extraction of Li^＋ from Li_1.6Mn_1.6O₄ with dilute hydrochloric acid, a high selective ion sieve for lithium MnO₂•0.5H₂O was obtained. The influence of Li∶Mn molar ratio and dosage of oxidant on the ion sieve character was discussed, and the adsorption properties were also studied. The results suggest that the lithium ion sieve prepared by soft chemistry route has high selectivity and adsorption capacity to Li^＋, and it is potential to be used in enrichment and recovery of lithium from seawater and other liquid lithium source.

Key words: lithium ion sieve, adsorption, soft chemistry route, lithium recovery

Cite this article

WANG Lu; MA Wei*; HAN Mei; MENG Chang-Gong. Soft Chemical Synthesis and Adsorption Properties of MnO₂•0.5H₂O, a High Performance Ion Sieve for Lithium[J]. Acta Chimica Sinica, 2007, 65(12): 1135-1139.

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高效锂离子筛吸附剂MnO₂•0.5H₂O的软化学合成及吸附性能研究

Soft Chemical Synthesis and Adsorption Properties of MnO₂•0.5H₂O, a High Performance Ion Sieve for Lithium

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高效锂离子筛吸附剂MnO2•0.5H2O的软化学合成及吸附性能研究