Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis

陈慧英; 刘艳; 张鹤腾; 于乐; 朱岳麟; 李荻

doi:10.1016/S1004-9541(09)60165-8

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Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis

Updated：2026-01-06

- Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis
- Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis
- 中国化学工程学报（英文版） 2010年18卷第6期页码：1034-1037
- Affiliations：
  
  1. School of Material Science and Engineering, Beihang University,Beijing,China,100083
  2. College of Life and Environmental Science, Minzu University of China,Beijing,China,100081
- Author bio：
- Funds：
  
  Supported by the 985 Foundation of Central University for Nationalities(CUN985-3-3);the National Natural Science Foundation of China(90305011)
- DOI：10.1016/S1004-9541(09)60165-8
  中图分类号：
- 纸质出版：2010
- Accepted：
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陈慧英, 刘艳, 张鹤腾, 等. Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis[J]. 中国化学工程学报（英文版）, 2010,18(6):1034-1037.

CHEN Huiying, LIU Yan, ZHANG Heteng, YU Le, ZHU Yuelin, LI Di. Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis[J]. , 2010, 18(6): 1034-1037.
陈慧英, 刘艳, 张鹤腾, 等. Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis[J]. 中国化学工程学报（英文版）, 2010,18(6):1034-1037. DOI： 10.1016/S1004-9541(09)60165-8.

CHEN Huiying, LIU Yan, ZHANG Heteng, YU Le, ZHU Yuelin, LI Di. Separation and Manipulation of Rare-earth Oxide Particles by Dielectrophoresis[J]. , 2010, 18(6): 1034-1037. DOI： 10.1016/S1004-9541(09)60165-8.

摘要

Abstract

A challenge in chemical engineering is the separation and purification of rare-earth elements and their compounds. We report the design and manufacture of a dielectrophoresis(DEP) microchip of microelectrode arrays. This microchip device is constructed in order to use DEP to capture micro-particles of rare-earth oxides in petroleum. Dielectrophoretic behavior of micro-particles of rare-earth oxides in oil media is explored. The dielectrophoretic effects of particles under different conditions are investigated. It is showed that the prepared microchip is suitable for use in the investigation of dielectrophoretic responses of the rare-earth oxides in oil media. The factors such as frequency

particle size and valence of rare-earth metal are discussed. When the frequency is fixed

the translation voltage decreases as particle size increases. Lower frequencies are more effective for manipulation of inorganic particles in oil media. Particles of the same rare-earth oxide with different size

as well as particles of different rare-earth oxides

are captured in different regions of the field by regulating DEP conditions. This may be a new method for separation and purification of particles of different rare-earth oxides

as well as classification of particles with different size.

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