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

作　　者：冀冰 吴平 任菡 张师平 Abdul Rehman 王立 

机构地区：[1]Department of Physics, School of Mathematics and Physics, University of Science and Technology Beijing [2]School of Mechanical Engineering, University of Science and Technology Beijing

出　　处：《Chinese Physics B》2016年第7期286-293,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.51276016)

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.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 

分 类 号：O441.6[理学—电磁学]