Patent ID: 9561511
Date: 2017-02-07
CPC Classifications: B03C

Claim:
1. A mixture separation method for applying a gradient magnetic field to a paramagnetic supporting liquid containing a mixture of first particles and second particles of different types to separate the mixture by particle type, wherein a magnetic susceptibility of the first particles is lower than a magnetic susceptibility of the supporting liquid, and a magnetic susceptibility of the second particles is higher than the magnetic susceptibility of the supporting liquid, the mixture separation method comprising: applying the gradient magnetic field to the supporting liquid in a separation tank provided with a magnetic filter and stirring the supporting liquid; applying the gradient magnetic field so that the first particles float in the supporting liquid or at a liquid surface thereof by the magneto-Archimedes effect, at least over the magnetic filter; and catching the second particles in the supporting liquid with the magnetic filter excited by the gradient magnetic field.