Extraction of Gold(III) Using Cyclopentyl Methyl Ether in Hydrochloric Acid Media

IF 0.6 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY

Solvent Extraction Research and Development, Japan Pub Date : 2017-01-01 DOI:10.15261/SERDJ.24.89

T. Oshima, Naoki Ohkubo, Iori Fujiwara, T. Horiuchi, Takao Koyama, K. Ohe, Y. Baba

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引用次数: 11

Abstract

Recently, cyclopentyl methyl ether (CPME) has found use as a commercially available solvent for various applications. As CPME shows better properties such as more hydrophobicity, less solublity in water, less volatility, and more stablity compared with typical ethereal solvents, it could be used as a diluent or an extractant in liquid-liquid extraction systems. In the present study, CPME was found to be useful for the extraction of Au(III) in hydrochloric acid media. Extraction of Au(III) increased with as increase in the hydrochloric acid concentration. Au(III) was selectively extracted using CPME from other precious metal ions and base metal ions. From the result of the dependency of the Au(III) concentration, CPME can load at least 0.93 g/dm3 Au(III). Extracted Au(III) was quantitatively stripped from CPME using 0.1 M aqueous thiourea solution. As the solubility of water into CPME is much smaller than that into alcohols such as 1-hexanol, CPME is more favorable as an extractant for Au(III) in hydrochloric acid media.

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环戊基甲基醚在盐酸介质中萃取金(III

最近，环戊基甲基醚(CPME)已被发现作为一种商业上可用的溶剂用于各种应用。由于CPME具有较好的疏水性、较低的水溶性、较低的挥发性和较好的稳定性，可作为液-液萃取体系中的稀释剂或萃取剂。在本研究中，发现CPME在盐酸介质中提取Au(III)是有用的。金(III)的提取率随盐酸浓度的增加而增加。利用CPME从其他贵金属离子和贱金属离子中选择性地提取了Au(III)。从Au(III)浓度依赖性的结果来看，CPME至少可以装载0.93 g/dm3的Au(III)。用0.1 M硫脲水溶液定量剥离CPME中提取的Au(III)。由于水在CPME中的溶解度比在醇(如1-己醇)中的溶解度小得多，CPME在盐酸介质中更适合作为Au(III)的萃取剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Solvent Extraction Research and Development, Japan 工程技术-工程：化工

CiteScore

1.30

自引率

14.30%

发文量

审稿时长

1 months

期刊介绍： Solvent Extraction Research and Development, Japan (Solvent Extr. Res. Dev., Jpn.) is a periodical issued from Japan Association of Solvent Extraction (JASE) containing papers dealing with all aspects of solvent extraction and their related methods, underlying principles, and materials. Original articles, notes, technical reports, and critical reviews will be considered for publication. Original articles must be of reasonably broad scope and significance to the solvent extraction. Notes will originally describe novel work of a limited nature or especially significant work in progress. Authors can contribute some information of novel techniques, equipment or apparatus, reagents and diluents for solvent extraction as technical reports. Critical reviews will be received from the authors to whom the editorial committee asked to contribute.