Separation Process of Fine Coals by Ultrasonic Vibration Gas-Solid Fluidized Bed

Table 3

Elemental composition of different samples.

Sample name	Element content/%
	MgO	CaO	Fe2O3	Al2O3	SiO2	S	P
Original coal	0.16	2.74	2.02	11.91	13.06	2.43	0.021
Light product	0.10	0.61	0.63	9.76	12.07	1.66	0.022
Heavy product	0.58	2.03	3.68	20.38	39.28	6.78	0.029