Solid-phase extraction gold from alkaline cyanide solution with quaternary ammonium surfactant

作     者：Run-Fang Xie Qiu-Fen Hu Guang-Yu Yang Jing Chen Yun-Shan Han Yong-He Zhao Zhen Li 

作者机构：School of Forensic MedicineKunming Medical University School of Chemical Science and TechnologyYunnan University Inspection and Analysis CenterYunnan Copper Industry Limited by Share Ltd 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2016年第35卷第3期

页      面：282-288页

核心收录：

学科分类：080603[工学-有色金属冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：financially supported by the National Natural Science Foundation of China (No.20471051.) 

主　　题：Solid phase extraction Surfactant Alkaline cyanide solution Gold Mechanism 

摘      要：The solid-phase extraction（SPE） technique applied to the extraction of organic compound was creatively used as the extraction of inorganic gold in the *** types of techniques were proposed and explored,namely the SPE and the liquid–liquid extraction（LLE） of the quaternary ammonium surfactant [cetytrimethyl ammonium bromide（CTMAB）,cetyl pyridine bromide（CPB）,benzyl dimethyl dodecyl ammonium chloride（BDMDAC）,and dodecyl trimethyl ammonium chloride（DTMAC）].The surfactant could react with Au（CN）2^- to form the ionic complex,and the compound could be extracted by SPE column of reversed-phase bonded silica ***,a new method of SPE was proposed to extract gold with these features of the high selectivity,the reliability,and the *** experimental result shows that the recovery rate of gold is more than 98 %,and the solid-phase extraction column is not easily damaged and it can be repeatedly *** new method can be used as the extraction process of gold from alkaline cyanide solution as ***,the paper also puts forward a new process of gold extraction.