Question

Write the principle of liquation.

Answer 1

Liquation is a metallurgical method for separating metals from an ore or alloy. The material must be heated until one of the metals starts to melt and drain away from the other and can be collected. This method was largely used to remove lead containing silver from copper, but it can also be used to remove antimony minerals from ore, and refine tin.

Answer 2

Low melting metals like tin and lead may contain other high melting metals or metal oxides as impurities.On heating such metals on the inclined surface of a furnance,the pure metal melts and flows down leaving the impurities behind.