The Technical Study on Mineral Processing for Lead Oxide Ore Containing High PbSO4

In the ore samples the lead sulfide ore is galena, the lead oxide ore is PbSO4 and the oxidation rate of lead is 51.91%, which belongs to lead oxide ore containing high PbSO4. PbSO4 is the refractoty ore. The key technique for the improvement of the recovery of lead is how to achieve the effective recovery of the refractory ore of PbSO4. The contrast test of the four flowsheet of gravity separation by tabling, gravity separation by spiral chute, single flotation and flotation—gravtiy separation by tabling was carried out. At last, the flowsheet of gravity separation by tabling was determined, by which the lead concentrate with the yield of 5.26%, the lead grade of 42.50% and the lead recovery of 64.43% could be obtained and the loss rate of lead in the tailings was 35.57%. This provides technology and economy basis for the design and comprehensive utilization of the middle and low-grade lead oxide ores which stockpiled many years.