The effect of calcite size/dosage on the sulfidization flotation of malachite at pH 9.5 [Na2 S] = 1 × 10 −3 mol/L; [SBX] = 8 × 10 −4 mol/L. 3.2. The mechanism of calcite slimes depress the malachite sulfidization flotation. The above mentioned flotation results indicated that the calcite slimes (−10 μm) significantly depressed the ...