Flotation test has been carried out to recover andalusite from a ore with Al2O3 grade 25.05%, SiO2 grade 57.10% and Fe grade 6.50%. The results showed that combined sodium petroleum sulfonate with sodium dodecyl sulfate sodium could strengthen the recovery of andalusite. Andalusite concentrate with Al2O3 grade of 56.29% and Al2O3 recovery of 28.35% was obtained by the closed circuit.%对Al2O3品位为25.05%、 SiO2品位为57.10%、TFe品位为6.50%的某红柱石矿进行了试验研究。结果表明，采用组合捕收剂石油磺酸钠和十二烷基硫酸钠强化对红柱石的捕收，能够显著提高红柱石回收率。闭路试验能够得到Al2O3品位为56.29%，Al2O3回收率为28.35%的红柱石精矿。
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