METHOD AND APPARATUS FOR SEPARATION OF MIXTURE

摘要

Provided are a mixture separation method and a separation apparatus in which processes are performed efficiently in a short time compared to conventional methods with a low load on the apparatus configuration compared to conventional methods. The present invention is a mixture separation method or a mixture separation apparatus for separating, by applying a gradient magnetic field to a paramagnetic supporting liquid containing a mixture of first particles and second particles, the mixture by particle type. 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. A gradient magnetic field is applied to the supporting liquid in the separation tank (7) provided with a magnetic filter means (9) using a magnetic field generating means (11), and the supporting liquid is stirred. The first particles float in the supporting liquid by a magneto-Archimedes effect. A horizontal magnetic force acts on the first particles by the gradient magnetic field, so that the first particles travel to a region lateral to or outward from the magnetic filter means (9) and are gathered in the region. The magnetic filter means (9) is excited by the gradient magnetic field to catch the second particles.

主权项

1. A mixture separation method for one of separating, by particle type, a mixture of first particles and second particles of different types by applying a gradient magnetic field to a paramagnetic supporting liquid containing the mixture, and separating, by applying a gradient magnetic field to a paramagnetic supporting liquid containing a mixture of first particles and second particles of different types, the first particles or the second particles from the mixture,
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 means and stirring the supporting liquid; applying the gradient magnetic field so that the first particles float in the supporting liquid or at the liquid surface thereof by the magneto-Archimedes effect, at least over the magnetic filter means; and catching the second particles in the supporting liquid with the magnetic filter means excited by the gradient magnetic field.