METHOD FOR SEPARATION OF HIGHLY MAGNETISED ORES IN HIGH-GRADIENT ALTERNATING MAGNETIC FIELD Russian patent published in 2016 - IPC B03C1/25 

FIELD: technological processes.

SUBSTANCE: invention relates to magnetic separation, namely, to methods of selective extraction of highly magnetised particles from aqueous suspensions or aerial suspension, and can be used in mining, metallurgical (obtaining raw material for direct process of steel production) and other industries. Method for extraction of highly magnetised particles from liquid media includes supply of pulp from above into a ferromagnetic highly-gradient matrix, exposure to highly-gradient alternating magnetic field, deposition of highly magnetised particles on elements of the ferromagnetic matrix, wash-out of particles from the ferromagnetic elements. Ferromagnetic matrix is exposed to alternating magnetic field with a low intensity corresponding to the maximum magnetic permeability of magnetite. Matrix is made of elastically deformable elements, besides, the curvature of the poles of the matrix corresponds to the size of extracted particles.

EFFECT: improved quality of obtained concentrate, as well as higher efficiency of the method.

1 cl, 1 dwg