The gas solid fluidized bed separation experiment was carried out to fine coal.The backscattered electron imaging in scanning electron microscope(BSE)and section distribution of the elements technology in energy dispersive X-ray technology(EDX)were applied to analyze the separation products.The feasibility to evaluate the effect of gas solid fluidized bed to separate fine coal by combining these analysis technology was investigated.The results indicated that,EDX can distinguish coal and other inorganic mine...