Magnetic field analysis of high gradient magnetic separator via finite element analysis

► Magnetic field and the gradient decide magnetic forces acting on particles in High Gradient Magnetic Separation (HGMS). ► We calculated the magnetic field and the gradient by using Finite Element Method (FEM). ► Firstly, we calculated them through 2 dimensional axis-symmetric analysis. ► Furthermore, we calculated the magnetic field distribution through 3 dimensional analysis. ► We could find out how much portion of magnetic force originates from the magnetic field and the gradient.