中国物理B ›› 2016, Vol. 25 ›› Issue (7): 74704-074704.doi: 10.1088/1674-1056/25/7/074704

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Segregation behavior of magnetic ions in continuous flowing solution under gradient magnetic field

Bing Ji(冀冰), Ping Wu(吴平), Han Ren(任菡), Shiping Zhang(张师平), Abdul Rehman, Li Wang(王立)   

  1. 1 Department of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China;
    2 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • 收稿日期:2015-11-18 修回日期:2016-02-02 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: Ping Wu E-mail:pingwu@sas.ustb.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51276016).

Segregation behavior of magnetic ions in continuous flowing solution under gradient magnetic field

Bing Ji(冀冰)1, Ping Wu(吴平)1, Han Ren(任菡)1, Shiping Zhang(张师平)1, Abdul Rehman1, Li Wang(王立)2   

  1. 1 Department of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China;
    2 School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2015-11-18 Revised:2016-02-02 Online:2016-07-05 Published:2016-07-05
  • Contact: Ping Wu E-mail:pingwu@sas.ustb.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51276016).

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摘要： The research of magnetic separation starts from magnetic solid particles to nanoparticles, and in the research progress, particles become smaller gradually with the development of application of magnetic separation technology. Nevertheless, little experimental study of magnetic separation of molecules and ions under continuous flowing conditions has been reported. In this work, we designed a magnetic device and a “layered” flow channel to study the magnetic separation at the ionic level in continuous flowing solution. A segregation model was built to discuss the segregation behavior as well as the factors that may affect the separation. The magnetic force was proved to be the driving force which plays an indispensable role leading to the segregation and separation. The flow velocity has an effect on the segregation behavior of magnetic ions, which determines the separation result. On the other hand, the optimum flow velocity which makes maximum separation is related to the initial concentration of solution.

关键词: magnetic ions, magnetic separation, segregation, enrichment

Abstract: The research of magnetic separation starts from magnetic solid particles to nanoparticles, and in the research progress, particles become smaller gradually with the development of application of magnetic separation technology. Nevertheless, little experimental study of magnetic separation of molecules and ions under continuous flowing conditions has been reported. In this work, we designed a magnetic device and a “layered” flow channel to study the magnetic separation at the ionic level in continuous flowing solution. A segregation model was built to discuss the segregation behavior as well as the factors that may affect the separation. The magnetic force was proved to be the driving force which plays an indispensable role leading to the segregation and separation. The flow velocity has an effect on the segregation behavior of magnetic ions, which determines the separation result. On the other hand, the optimum flow velocity which makes maximum separation is related to the initial concentration of solution.

Key words: magnetic ions, magnetic separation, segregation, enrichment

中图分类号:  (Magnetic fluids and ferrofluids)

  • 47.65.Cb
47.15.Rq (Laminar flows in cavities, channels, ducts, and conduits) 83.60.Np (Effects of electric and magnetic fields) 83.85.-c (Techniques and apparatus)