A Chelating Resin Containing 2-(2-Thiazolylazo)-5-dimethylaminophenol as the Functional Group:Synthesis and Sorption Behavior for Some Trace Metal Ions

Bulletin of the Korean chemical society

Chang-Heon Lee¹  Won Lee¹  Young-Sang Kim¹  Si-Eun Lee¹  Mi-Kyoung Kim¹ 

关键词: Chelating resin;    2-(2-Thiazolylazo)-5-dimethylaminophenol;    Sorption behavior;    Column method;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A new polystyrene-divinylbenzene resin containing 2-(2-thiazolylazo)-5-dimethylamino-phenol (TAM) functional groups has been synthesized and its sorption behavior for nineteen metal ions, including Zr(�?),Hf(�?) and U(�?) has been investigated by batch and column methods. The chelating resin showed high sorption affinity for Zr(�?) at pH 1-5 and U(�?) at pH 4. Some parameters affecting the sorption of the metal ions have been detailed. The breakthrough and overall capacities were measured under optimized conditions. The overall capacities of Zr(�?), Th(�?) and U(�?), which showed higher than the other metal ions, were 0.90,0.84 and 0.80 mmol/g, respectively. The elution order of metal ions at pH 4 was evaluated as Zr(�?) > Th(�?) > U(�?) > Cu(�?) > Hf(�?) > W(�?) > Mo(�?) > In(�?) > Sn(�?) > Cr(�?) > V(�?) > Fe(�?). Quantitative recovery of most metal ions except Zr(�?) was achieved using 2M HNO₃. Desorption and recovery of Zr(�?) was successfully performed with 2 M HClO₄ and 2 M HCl.

【 授权许可】

Unknown