METHOD OF SELECTIVE FLOTATION OF FINELY DISPERSED ORES Russian patent published in 1995 - IPC

FIELD: concentration of minerals. SUBSTANCE: pulp is subjected for the successive conditioning with regulating agents of ionic composition, modifying agent, collecting agent and foaming agent, and valuable component is isolated into the foaming product. Hydrophobic organosilicon compound ГКЖ-94 is added additionally at conditioning which is fed with foaming agent in the mixture as an emulsion stabilized with sulfonol. At niobium ore flotation ИМ-50 is added as collecting agent and pine oil as foaming agent, and the ratio ИМ-50, pine oil, ГКЖ-94 and sulfonol is from 1:0.1:0.02:0.0005 to 1: 0.3:0.12:0.006. At rare-earth flotation asparal is added as collecting agent and pine oil as foaming agent, and the ratio of asparal, pine oil, ГКЖ-94 and sulfonol is from 1:0.5:0.05:0.00125 to 1:1:0.25:0.0125. At apatite ore flotation flotol-7,9 is added as collecting agent and pine oil as foaming agent, and the ratio of flotol-7,9, pine oil, ГКЖ-94 and sulfonol is from 1: 0.25: 0.1:0.0025 to 1:0.5:0.3:0.015. EFFECT: improved method of flotation. 4 cl, 11 tbl