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从水流中微提取酸的离子液体基础的分散液体-液体微提取:COSMO-RS查和实验验证

Huma Warsi Khan¹, Anis Aina Zailan¹, Ambavaram Vijaya Bhaskar Reddy²

¹Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak.

Environmental technology

|July 7, 2023

概括

基于离子液的分散液-液微提取 (IL-DLLME) 有效地从水流中提取酸 (SA). 四甲基氧化 ([TMAm][OH]) 实现了97.8%的去除,证明了一种有前途的绿色化学方法.

科学领域:

绿色化学绿色化学
分离科学分离科学
分析化学分析化学

背景情况:

酸 (SA) 是一种有价值的平台化学物质,具有多种工业应用.
需要有效和环保的方法从水溶液中提取SA.
离子液体 (ILs) 为先进的分离技术提供可调节的特性.

研究的目的:

选和识别有效的离子液体 (ILs) 用于酸 (SA) 提取.
开发和优化一种以离子液为基础的分散性液体-液体微提取 (IL-DLLME) 方法来去除SA.
研究开发的IL-DLLME方法的提取效率和动力学.

主要方法:

对真实溶剂的导体样选模型 (COSMO-RS) 用于选108种IL组合.
开发了一种IL-DLLME方法,使用四甲基氧化 ([TMAm][OH]) 作为提取剂和乙作为分散溶剂.
进行了反应参数的优化,包括IL体积,分散溶剂体积,时间和离心速度.

主要成果:

预测COSMO-RS四级和胆离子与氧化物,化物和硫酸盐离子配对,对通过结合提取SA有效.
优化的IL-DLLME方法使用25μL的[TMAm][OH]和500μL的乙基,实现了97.8%的SA去除效率.
观察到最大的SA提取是在300rpm20分钟的时间和4500rpm5分钟的离心,遵循第一阶动力学.

结论:

基于离子液的分散液-液微提取 (IL-DLLME) 是一种高效的技术,用于从水流中提取酸.
甲基氧化 ([TMAm][OH]) 显示出在IL-DLLME中作为提取剂的显著潜力,用于SA恢复.
开发的方法为酸分离和净化提供了一种绿色和有效的替代方案.

关键词:

在COSMO-RS的基础上,分散的分散性分散.离子液体是有离子的液体.微提取微提取微提取葡萄糖酸是什么?葡萄糖酸是什么?

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