Abstract: In order to alleviate fluorite resources situation , and enhance the utilization level of low grade refractory fluorite and intergrowth ( associated ) fluorite, and combined with an analysis on the ore properties , the author conduct series condition test , part of the process open circuit test , and whole process closed circuit test research .Study results confirms in a second of scavenging for rough , rough concentrate again five selected after grinding , the order of middlings was returned to the principle of process conditions , with oleic acid as the collecting agent , sodium silicate and sodium humate as the composite inhibitor , sodium carbonate as pH adjusting agent , which can realize the white tungsten polymetallic ore tailings of fluorite recycling secondary resources effectively .When the dosage of collector oleic acid 450 g/t, composite inhibitor 2.8 kg/t, sodium carbonate is 1 kg/t, under the condition of 16. 41%feed grade of CaF2 , obtained CaF2 grade of 87.92%, CaF2 fluorite concentrate recovery was 53. 53%.

Key words: fluorite;flotation;extractive technique