First slide

Introduction to metallurgy

Question

Which of the following statements is correct about the role of substances added in the froth floatation process?

Moderate

A

Collectors enhance the non-wettability of the mineral particles.
B

Collectors enhance the wettability of gangue particles
C

By using depressants in the process two sulphide ores can be separated
D

Froth stabilizers decrease wettability of gangue.

Solution

i) Collector enhances the non-wettability of the mineral particles
ii) Depresants suppress one type of sulphide are particles to pass into froths

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