Magnetic techniques for separating non-magnetic materials

Details Magnetic techniques for separating non-magnetic materials Magnetic techniques for separating non-magnetic materials

B - Operations, Transporting

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B01D 35/06 (2006.01) B03C 1/00 (2006.01) B03C 1/01 (2006.01) B03C 1/32 (2006.01) G01N 27/72 (2006.01)

Patent

CA 1096518

Abstract of the Disclosure A process for magnetically separating non-magnetic material from a mixture by combining the mixture with a magnetizing solution containing the salt of a magnetic element. The magnetic atoms attach to available sites on the molecules of the non-magnetic material so as to develop in that material a positive susceptibility. Thus the material is responsive to the influence of a magnetic field to move the material to a region where it can be analyzed or recovered. Materials with low positive or negative suscepti- bilities are separated by suspending them in a magnetic salt solution which when subjected to the attraction of a magnetic field develops a differential buoyancy force, pushing the diamagnetic or weak paramagnetic material strongly away from the magnet. Disclosed are solutions of ferric chloride, manganese chloride, erbium chloride, dysprosium chloride, turbium chloride, and holmium chloride.

295712

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