从盐酸溶液中提取 (IV) 离子的液体-液体提取,使用在煤油中溶解的Aliquat 336
1Hot Laboratories Center, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt.
BMC chemistry
|September 28, 2024
概括
这项研究表明,在煤油中使用Aliquat 336有效地用溶剂提取 (IV),从缩盐酸溶液中获得高回收率. 优化的方法显示出从工业液中回收的前景.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 水电金术是指用水电金术进行金术.
- 分离科学 分离科学
背景情况:
- 的回收对环境保护和资源利用至关重要.
- 盐酸介质对选择性金属提取提出了挑战.
- 阿利卡特336是一种四级盐,以其在液体-液体提取中的潜力而闻名.
研究的目的:
- 通过使用Aliquat 336.6从缩的盐酸中提取 (IV) 的溶剂.
- 为了优化提取参数并阐明提取机制.
- 评估从工业溶液中回收的方法的可行性.
主要方法:
- 使用0.4mol/L Aliquat 336在煤油中与1-octanol作为修饰剂进行溶剂提取.
- 对参数进行系统研究:酸度,时间,金属离子度,负载能力,稀释剂和温度.
- 使用斜率分析和富里埃变换红外光谱 (FT-IR) 来识别提取的物种.
- 提取过程的热力学分析.
主要成果:
- 获得了的高提取效率 (IV),达到92%在8mol/L HCl和97.1%在1mol/L Aliquat 336.6.
- 最佳的有机阶段包括Aliquat 336在煤油中与1-octanol.
- 提取的物种被确定为[H2SeO2Cl2.2R4NCl]org,提取平衡常数 (Kex) 为 26.17 ± 2 M-2.
- 由于安全,经济和环境因素,煤油被确定为首选的稀释剂.
结论:
- 开发的溶剂提取方法对于从缩的HCl中恢复是非常有效的.
- 该过程是内热的,如热力学参数所示.
- 该方法显示了从阳极粘液浸出液中回收的实际应用潜力.
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