Patent ID: 8916049
Filing Date: 2014-12-23
Classification: B03C,B24B

Abstract:
1. A method for processing a mixture including a water-based fluid medium containing first particles made of one of a magnetic material and a nonmagnetic material in which second particles made of the other of the magnetic material and the nonmagnetic material are mixed, comprising: an adjustment step of adjusting the hydrogen ion exponent (pH) of the mixture so that both the first particles and the second particles are charged positively or negatively and a repulsing force arises between the first particles and the second particles; a dispersion step of dispersing aggregates of the first particles and the second particles present in the mixture after the adjustment step; and a magnetic separation step of separating the first particles and the second particles by applying a magnetic field with the mixture in parallel with the dispersion step or after the dispersion step, wherein magnetic forces, which are different in amount between the first particles and the second particles at least due to a difference of magnetization between the first particles and the second particles, are caused by the magnetic field in the magnetic separation step.