Abstract: To reduce the consumption of flotation reagents and improve the yield of flotation concentrate of Datun coal preparation plant,using ZNX-K07 collector instead of the original collector,and conducted industrial test on the basis of investigation and analysis. The industrial test results show that: ZNX-K07 collector can higher flotation efficiency,the foam has better mobility,which easy to dewatering of concentrate reduce the flotation reagents consumption of a coal preparation plant.