Question

Froth-flotation process can be made more effective by the:

• A. use of pine oil which produces stable froth
• B. use of sodium ethyl xanthate as a collector that coats the particles of ore
• C. both (a) and (b)
• D. none of the above

Answer 1

The correct option is C both (a) and (b)

Pine oil acts as foaming agent. It stabilizes the froth.
Sodium ethyl xanthate (also potassium ethyl xanthate) acts as collectors.
They coat the ore particles.