STUDY AND APPLICATION OF SILLIMANITE FLOTATION AGENTS

This paper,starting from the study on the surface elec-the-property differences between sillimanite in some chinese mine and itsmain intergrown silicates,detailedly inquires into the mixing function offatty acids and hydrocarbon sulfonic acids collecting agents on sillimaniteand based on this finds the optimum agent-blending system,so that it ispossible to realize the efficient effparation of sillmanite,mica and quartz.Through the single flotation closed-circuit experiment of hard-to-be-sepa-rated ores with hair-like corpuscles embedded,the authors have successivelyseparated out the sillimanite concentration （Al2O3 56. 31%;Fe2O3 1.07%;TiO2 1.0%;alkalis 0.2% ）from the raw ores （sillimanite 15%;Al2O319.92%;Fe2O3 1.90%;TiO2 3%;alkalis 0.2%） and obtained the silli-manite flotation recovery as high as 70%.