Question

what is Hydraulic washing and froth floatation method​

Answer 1

Answer:

Froth flotation separates the gangue particles from the ore, based on the fact that gangue is wetted by water, while mineral is wetted by oil. The ore is crushed into fine powder and mixed in water. Then, collectors and stabilisers are added to the water.

Hydraulic Washing

This method is based on the differences in weight between the gangue and the metal. Generally, the metal particles of the ore are heavier than the impurities. So we use the principle of gravity separation to separate the two.

Here crushed ore is mixed with an upward stream of running water. The lighter particles of the gangue wash away in the running water. The heavier metal particles settle down and can be separated easily. We use this method for ores that contain lead and tin since these are relatively heavier.

Explanation:

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Answer 2

Answer:

hydrolytic method = Separation of ore and gangue due to difference in density of particles.

Froth flotation = Separation of ore and gangue by preferential wetting...