Electrolysis And Vapour Phase Refining

Purification OF Metal||Electrolytic Refining||Vapour Phase Refining||Van Arkel Process|| Mond's Process

Refining or Purification OF Metal-(A)Thermal Refining (1)Distillation (2) Vapour Phase Refining (a)Mond’s Process (b)Ven-Arker (3)Amalgamation (4)Puling (5)Liquation (6)Zone-Refiling(7)Cupellation (8)Pudding (B)Electrolytic Refining

Write the principles of the following methods: (i) Vapour phase refining (ii) Zone refining (iii) Chromatography

Explain the basic principles of the following metallurgical operations : (i) Zone refining (ii)Froth floatation process (iii) Refining by liquation (d) Vapour phase refining.

Benefication of the ore can be done by different ways. It is increasing the concentration of ore by removing impurities, while refining is the process by which concentration of metal is incresed in the final product. The phase principle to apply vapour phase refining is/are:

Describe the principle behind each of the following processes : (i) Vapour phase refining of a metal. (ii) Electrolytic refining of a metal. (iii) Recovery of silver after silver ore was leached with NaCN.

Describe the principle controlling each of the following processes: (i) Vapour phase refining of titanium metal. (ii) Froth floatation method of concetration of a sulphide ore