通过化学溶解稳定剂来消除皮克林乳液的乳化
Renuka S Gohil1, S Karishma1, Hemant Kumar1
1Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India.
Langmuir : the ACS journal of surfaces and colloids
|May 24, 2024
概括
这项研究提出了一种简单的方法,通过将稳定剂颗粒溶解在酸或中来分解颗粒稳定剂乳液. 这种脱乳化技术对各种乳液有效,为工业应用提供了方便的方法.
科学领域:
- 合体和表面化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 颗粒稳定乳液,如皮克林乳液,在废水处理和催化等工业过程中至关重要.
- 这些乳液的脱硫对于产品回收和环境修复至关重要.
- 目前用于不稳定乳液的方法可能是复杂的或能源密集的.
研究的目的:
- 开发一种简单且可通用的方法来破坏粒子稳定油在水乳液的稳定性.
- 研究使用酸或来溶解稳定剂颗粒作为脱策略.
- 介绍粒子溶解引起的脱硫的动力学和机制.
主要方法:
- 通过使用酸或酸,研究了用血稳定的在水中的乳液脱硫.
- 检查了用水性氧化物与稳定稳定水乳液的脱化.
- 通过监测乳液体积的时间变化来分析脱乳化动力学.
- 利用扫描电子显微镜 (SEM) 来描述稳定剂颗粒在脱后的状态.
主要成果:
- 通过在现场溶解稳定剂颗粒 (血和二氧化) 用酸或来实现脱.
- 脱硫时间随着酸度的增加而减少.
- 乳液体积的减少发生在两个阶段:最初的缓慢下降,随后的指数下降.
- SEM证实了稳定剂颗粒作为盐的完全溶解和再结晶.
结论:
- 通过用化学试剂 (酸/) 溶解稳定剂颗粒来使颗粒稳定的乳液不稳定的一个简单方法得到了证明.
- 该方法对不同类型的颗粒稳定剂 (血,) 有效,并且可以将其推广到其他系统.
- 这项研究表明,将粒子大小降低到纳米范围对于通过溶解诱导不稳定性至关重要,基于脱吸自由能量的估计.
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