The comparison test with MPD petroleum sodium sulphonate collector on Qidashan lean hematite ore showed a collector cost reduction of 25%,a collector consumption reduction of 48% and a good flotation effect.

• 试验结果表明 ,以齐大山贫赤铁矿石为对象 ,与MPD石油磺酸钠捕收剂进行对比 ,捕收剂成本下降 2 5%25 ,捕收剂用量降低 48%25 ,试验取得较好效果。