With a decrease in the mole ratio, volatilization of sulfur decreased rapidly.

In this paper, Mostly introduce to desulfurize method of sulphate form, pass in reverse floatation May hold sulfur of iron concentrate drop to 0.13%, sulfur get ride of ratio became 93.43%.

Test shows that the sulfur educing behavior is closely related to coal quality and burning behavior of each single coal sort and the mixed ratio of single coal sorts.