FIELD: mining industry. SUBSTANCE: in apatite and phosphorite processing, phosphate raw material, prior to coming into contact with acid, is held preliminarily in aqueous solution of ionic surfactant whose surfactant ion has sign of charge opposite to sign of charge of the surface of phosphate raw material and concentration of surfactant is such that electric charge on the surface of solid phase in solution is equal to zero, that is surface of the phosphate raw material is in isoelectric state. EFFECT: accelerated decomposition of phosphorite ores, simplified processing equipment, and reduced production expenses. 2 tbl
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Authors
Dates
2003-10-20—Published
2002-07-04—Filed