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  4. Oil used as frothing agent in froth floatation process is

Q. Oil used as frothing agent in froth floatation process is

 2084  195 AIIMSAIIMS 2016General Principles and Processes of Isolation of Elements Report Error

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.