1. The effect of some compound synergists on the flotation indexes of fatty acid collectors (oxide paraffin soap, oleic acid, dregs of fat) under ordinary temperature was discussed in the paper. 探讨了几种复合增效剂对脂肪酸类捕收剂（氧化石蜡皂、油酸、油脚皂）常温浮选指标的影响。