The comparison test with MPD petroleum sodium sulphonate collector on Qidashan lean hematite ore showed a collector cost reduction of25%, a collector consumption reduction of48% 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25%25,捕收剂用量降低48%25,试验取得较好效果。