Concentration of Ores

One of the steps in metallurgyis concentration of ores. Majority of the concentration technique are physical in nature. But there Is a chemical method of concentration of ores. Also explain the terms calcination and roasting.

Explain froth floatation process for the concentration of Ore.

One of the steps in metallurgyis concentration of ores. Majority of the concentration technique are physical in nature. But there Is a chemical method of concentration of ores.Give a metal ore which can be concentrated by chemical methods.

Which one of the following is not a method of concentration of ore

Concentration of carbonate ores : Calcination :: Concentration of sulphide ores : ______

Concentration of carbonate ores : Calcination :: Concentration of sulphide ores : ______