Question

The collecting agent in froth floatation process is:

• A. sodium ethyl xanthate
• B. pine oil
• C. lime
• D. water

Answer 1

The correct option is A sodium ethyl xanthate

Collectors either chemically bond (chemisorption) on a hydrophobic mineral surface, or adsorb onto the surface through physisorption. Collectors increase the natural hydrophobicity of the surface, increasing the separability of the hydrophobic and hydrophilic particles. The collecting agent in froth floatation process is sodium ethyl xanthate.

Pine oil is also added in froth floatation but as frother.

Hence, the correct option is $\text{A}.$