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

Figure 6

Surface distribution of elements in heavy product: (a) backscatter imagery of heavy product; (b) Si; (c) Al; (d) Ca; (e) Fe; (f) S.

(a)

(b)

(c)

(d)

(e)

(f)