Question
Chemistry Question on Concentration of ores
Oil used as frothing agent in froth floatation process is
A
pine oil
B
mustard oil
C
coconut oil
D
olive oil
Answer
pine oil
Explanation
Solution
Froth floatation method is used for removing gangue from sulphide ores. In this process, a suspension of the powdered ore is made with water. Collectors and froth stabilizers are added to it. Collectors (e.g., pine oils, fatty acids, xanthates, etc.) enhance non-wettability of the mineral particles and froth stabilizers (e.g., cresols, aniline) stabilize the froth. The mineral particles become wet by oils while the gangue particles by water.