8-喹啉醇萃取环戊基甲基醚中金属阳离子的萃取行为

IF 0.6 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY

Solvent Extraction Research and Development, Japan Pub Date : 2019-01-01 DOI:10.15261/SERDJ.26.1

T. Oshima, Takao Koyama, K. Ohe, Noriyasu Otsuki

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引用次数: 2

摘要

迄今为止，已经开发出多种螯合萃取剂，但许多好的萃取剂不溶于脂肪族溶剂。本研究将环戊基甲基醚(CPME)作为萃取剂的溶剂，以开发新的溶剂萃取体系。许多萃取剂(100 mM)可溶于CPME。研究了典型螯合萃取剂8-喹啉醇(HQ)对CPME中金属离子的萃取行为。在较低的pH条件下，HQ在1-辛醇和氯仿中提取金属离子的效果与在甲苯中提取金属离子的效果相似。通过斜率分析证实了在CPME中HQ萃取In(III)的反应。通过质子交换反应，在CPME中形成了HQ与In(III)之间的1:1配合物，并确定了萃取平衡常数。在(III)中，用CPME中的HQ提取，用无机酸定量回收。结果表明，CPME是一种潜在的替代有毒有机溶剂的溶剂萃取体系。

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Extraction Behavior of Metal Cations Using 8-Quinolinol as an Extractant in Cyclopentyl Methyl Ether

To date, many kinds of chelating extractants have been developed, however, many of the good extractants are insoluble in aliphatic solvents. In the present study, cyclopentyl methyl ether (CPME) was assessed as a solvent for extractants to develop new solvent extraction systems. Many of the extractants (100 mM) were soluble in CPME. The extraction behavior of metal ions using a typical chelating extractant, 8-quinolinol (HQ) in CPME, was studied. The extraction profiles of metal ions using HQ in CPME were similar to those in toluene, whereas metal ions were extracted using HQ in 1-octanol and chloroform under lower pH conditions. The extraction reaction of In(III) using HQ in CPME was confirmed by slope analysis. A 3 : 1 complex between HQ and In(III) was formed in CPME by a proton exchange reaction, and the extraction equilibrium constant was determined. In(III), extracted using HQ in CPME, was quantitatively recovered using mineral acids. From the results, CPME was found to be a potential alternative solvent to other toxic organic solvents for the development of a solvent extraction system.

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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.