制备了３种以煤油为基底的复合捕收剂ＭＲ－１，ＭＲ－２，ＭＲ－３，并与煤油捕收剂进行了对比实验。结果表明，复合捕收剂能较大幅度提高精煤产率和可燃体抽出率，并能较大幅度加快浮选速率，其中以ＭＲ－２最佳。使用复合捕收剂可以降低生产成本，增加精煤产量，由于浮选速率加快，对二次浮选工艺尤为有利。 Three kerosene-based composite collectors, MR-1, MR-2 and MR-3, were prepared and compared with kerosene collectors. The results show that the composite collector can greatly improve the yield of clean coal and combustibles extraction rate, and can greatly accelerate the flotation rate, of which MR-2 is the best. The use of composite collectors can reduce production costs, increase the yield of refined coal, the flotation rate is accelerated, the secondary flotation process is particularly beneficial.