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Magnetic separation takes advantage of differences in the magnetic properties of minerals. Minerals fall into one of three magnetic properties: ferromagnetic, paramagnetic and diamagnetic. Ferromagnetic minerals are themselves magnetic (i.e., magnetite and pyrrhotite) and can be easily separated from other minerals with a magnet since they will stick to the poles of the magnet.
The rare earth magnetic separator range achieves the most effective dry separation of paramagnetic minerals at high throughput rates. The range includes Rare Earth Roll (RERS) and Rare Earth Drum (REDS) Separators which are available in a range
2 MAGNETIC SEPARATION OF SULPHIDE MINERALS sizes: we have used it only in the size range represent the type of mineral associations from 35 mesh to 600 mesh and particularly on which the separator could be employed from roo to 400 mcsh.
Magnetic separation is a key stage in many mineral processing plants. Understanding the mineralogy of the deposit, and how different minerals behave in a magnetic field, is important when assessing the feasibility of using magnetic separation. Three fractions after magnetic separation: Non Magnetics, Middlings and Magnetics.
9/8/2019 The classification of minerals by magnetism is based on specific susceptibility (X), The greater the difference in specific susceptibility of minerals, the easier the separation. strong magnetic minerals include magnetite, maghemite, titanomagnetite, pyrrhotite and zinc-iron spinel, etc. Most are ferrimagnetic mineral.
A method for magnetically beneficiating an ore by removing therefrom undesired metallic minerals of inherently low magnetic attractability. An aqueous dispersed slurry of the ore is formed, and the slurry is mixed with a system of transiently suspended ferrimagnetic particles of predominantly colloidal size.
Therefore, in the identification, separation and general research of minerals, the magnetic properties mainly refer to the properties of minerals attracted by the external magnetic field. The magnetism of minerals mainly depends on whether there are unpaired electrons in the mineral lattice.
Gravity separation is the separation of two or more minerals of different specific gravity by their relative movement in response to the force of gravity and one or more other forces (such as centrifugal forces, magnetic forces, buoyant forces), one of which is resistance to motion (drag force) by a viscous medium such as heavy media, water or, less commonly, air.