METHOD OF MAGNETIC LIQUID REGENERATION Russian patent published in 2009 - IPC B03C1/32 

FIELD: mining.

SUBSTANCE: invention refers to magnetic concentration of minerals and is designed for regeneration of magnetic liquids, particularly on hydrocarbon or silicon-organic base. The method of regeneration of magnetic liquid consists in removing magnetic liquid from the surface of separated material together with washing-off liquid and in successive extraction of magnetic liquid of working concentration out of obtained mixture. As washing-off liquid an easy boiled individual hydrocarbon solvent or light hydrocarbon fraction boiled out before 120°C are used. Extraction of magnetic liquid of working concentration out of obtained mixture is carried out by heating this mixture to temperature not exceeding boiling temperature of washing-off liquid.

EFFECT: simplification of regeneration process, reduced costs and power losses and producing magnetic liquid available for repeated utilisation in concentration process.

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