Write all the steps that are involved in refining of zinc from Calamine
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The best concentration method for zinc ore is known as froth flotation.
Concentration of Ore: Froth Flotation Process
Froth Flotation process is mainly used to remove gangue from sulphide ores. The ore is powdered and a suspension is created in water. The main ingredients of the froth flotation are the Collectors and Froth Stabilizers. Collectors (pine oils, fatty acids etc) increase the wettability of the metal part of the ore and allows it to form a froth and Froth Stabilizers (cresols, aniline etc) sustain the froth. The oil wets the metal and the water wets the gangue. Paddles and air constantly stir up the suspension to create the froth. This frothy metal is skimmed off the top and dried to recover the metal.
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