Which of the following is the most suitable for cleaning of fine coal

1.	Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)?
A.	Trough washer
B.	Baum jig washer
C.	Spiral separator
D.	Froth floatation
Answer» E.

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Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)?

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