Simultaneous extraction and preconcentration of palladium and platinum from alkaline cyanide solution by hexadecylpyridinium bromide

被引：0

作者：

School of Chemical Science and Technology, Yunnan University, Kunming ^{[1
]}

650091, China

机构：

来源：

Zhongguo Youse Jinshu Xuebao | / 11卷 / 2449-2460期

基金：

中国国家自然科学基金;

关键词：

Cyanides - Extraction - Palladium compounds - Binary alloys - Platinum compounds - Alkalinity - pH - Ultraviolet spectroscopy;

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暂无

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学科分类号：

摘要：

Abastract: Simultaneous extraction and preconcentration of Pd(II) and Pt(II) from alkaline cyanide solution using hexadecylpyridinium bromide (HPB) as extractant were investigated. The factors affecting extraction and preconcentration efficiency, including diluent type, concentration of hexadecylpyridinium bromide, content of modifier, phase ratio (O/A), contact time of aqueous and organic phase, concentrations of Pd(II) and Pt(II) and pH value of solution, were studied. The results indicate that, at concentration of hexadecylpyridinium bromide (HPB) 0.05 mol/L, content of n-octyl alcohol 30% (volume fraction), phase ratio (O/A)=1:5, pH values 10.5 contact time of 5 min, Pd(II) ( © 2016, Science Press. All right reserved.

引用

页码：2449 / 2460