相关实验视频
Updated: Jul 2, 2025

07:33
Quantifying Mixing using Magnetic Resonance Imaging
Published on: January 25, 2012
10.9K
建立前置混合模型,以在稀土开采过程中的多驱动器激动柱中进行质量转移概述
Rezvan Torkaman1, Mohammad Reza Aboudzadeh Rovais2, Mehdi Asadollahzadeh3
1Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, P.O. Box: 11365-8486, Tehran, Iran. rtorkaman@aeoi.org.ir.
Scientific reports
|February 28, 2024
概括
本研究介绍了用于优化稀土提取的质量转移模型,在使用激动柱分离Sm(III) -Gd(III) 离子时实现高效率. 前向混合模型准确地预测了实验结果.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 分离科学 分离科学
- 水电金术是指用水电金术进行金术.
背景情况:
- 优化稀土元素 (REE) 提取对于可持续技术至关重要.
- 传统的提取方法在效率和选择性方面面临挑战.
- 需要先进的质量转移建模来加强工艺.
研究的目的:
- 开发和验证用于稀土开采的综合性质量转移模型.
- 为了研究操作变量对多螺旋振动柱的提取效率的影响.
- 为设计和扩展稀土分离工艺提供可靠的模型.
主要方法:
- 开发了一个插头流量,轴向分散,反流,前向混合质量转移模型.
- 使用合适技术进行数值解法.
- 在200rpm的多螺旋振动柱中的Sm(III) -Gd(III) 分离的应用.
主要成果:
- 前期混合模型显示与实验数据有显著一致.
- 提取效率为95.14%的Gd (III) 和76.67%的Sm (III) 已经实现.
- 高动增加了界面面积,但降低了质量转移系数;滴滴大小分布至关重要.
结论:
- 开发的质量转移模型准确地预测了稀土开采的性能.
- 操作变量显著影响质量转移速率和流路径偏差.
- 该研究为接触器设计和扩展提供了对质量转移系数的有价值估计.
相关概念视频
Column Efficiency: Rate Theory
332
The rate theory of chromatography provides quantitative insight into the shapes and widths of elution bands. These bands are based on the random-walk mechanism governing molecular migration within a column. The Gaussian profile of chromatographic bands arises from the cumulative effect of random molecular motions as they progress through the column.
During elution, a solute molecule experiences numerous transitions between stationary and mobile phases, exhibiting irregular residence times in...
During elution, a solute molecule experiences numerous transitions between stationary and mobile phases, exhibiting irregular residence times in...
332
High-Performance Liquid Chromatography: Elution Process
477
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
477

