Figure 8
Flotation performances of natural smithsonite before and after treatment and natural sphalerite at a natural pH and a terpineol dosage of 5 × 10−5 M (a) butyl xanthate concentrations: 5 × 10−5 M; (b) copper sulphate concentrations: 6 × 10−5 M; (c) butyl xanthate concentrations: 40 × 10−5 M; (d) copper sulphate concentrations: 18 × 10−5 M).
