GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

Occurrence of Metals Occurrence (ores) of Al, Cu, Zn and Fe.
Concentration of Ores Principles and methods of extraction: concentration of ores – hydraulic washing, magnetic separation, froth floatation, leaching -of alumina from bauxite, roasting and calcination –examples.
Extraction of Crude Metal from Concentrated Ore Extraction of Crude Metal from Concentrated Ore.
Thermodynamic Principles of Metallurgy Principles of extraction of aluminium, copper, zinc, iron: highlight the principle of extraction of iron from its oxide using Ellingham diagram. Extraction of iron from its oxides – blast furnace – diagram, reactions, equations.
Electrochemical Principles of Metallurgy Extraction of aluminium from purified alumina.
Oxidation Reduction Oxidation-reduction – extraction of gold.
Refining Principles and examples each for distillation, liquation, electrolytic method, zone refining, vapour phase refining- details for Mond’s and Van Arkel processes.
Uses Uses of Aluminium, Copper, Zinc and Iron