Abstract: The energy input during the flotation conditioning will both promote the adsorption of the collector to the coal particle surface and the desorption of the collector from the surface of the particle, which is a key factor affecting the flotation performance. Taking flotation feed from Linhuan coal processing plant as the research object, the effects of the impeller stirring speed, stirring time and kerosene concentration on the collector adsorption rate, surface area utilization rate of coal particle and flotation rate in flotation process were investigated, respectively. Furthermore, the carbon emission utilization rate was also explored. With the increase of impeller stirring speed and stirring time, the adsorption rate of collector, surface area utilization rate of coal particle and flotation rate firstly increases and then decreases. Meanwhile, the adsorption rate of collector and flotation efficiency increases and then decreases with increasing of kerosene concentration in the studied scope. In addition, the surface area utilization rate of coal slurry gradually increases and then keeps constant.