Define Extractive metallurgy, calcinations and roasting.
[3 marks]Explain briefly sources of metals.
[4 marks]Justify the importance of Ellingham diagram for oxide system in extractive metallurgy
[7 marks]Draw a simple flow sheet for extraction of Aluminum from bauxite ore.
[3 marks]Write in detail about ion exchange process.
[4 marks]Compare pyrometallurgy and hydrometallurgy in terms of merits and demerits.
[7 marks]List out Pyro metallurgical processes. Differentiate between pelletizing and sintering.
[7 marks]What is percolation leaching? List out advantage of it.
[3 marks]Define smelting. Explain matte smelting process
[4 marks]Discuss briefly fluidized bed roasting process.
[7 marks]Explain the reason of using autoclave in pressure leaching.
[3 marks]Discuss Reduction smelting with suitable example.
[4 marks]Describe the microbial leaching. Explain the effect of bacteria on leaching rate and extent of recovery
[7 marks]Explain the Zone refining.
[3 marks]During electrolysis of CuSO 25 gms of copper is deposited at cathode.4 Calculate 1) Coulombs required to deposit given amount of copper 2)Time required to deposit given amount of copper when 3 amp of steady current is maintained.
[4 marks]Write a note on fused salt electrolysis.
[7 marks]Draw flow sheet of extraction of Zinc.
[3 marks]List out physical method of Refining. Explain selective distillation of impurities.
[4 marks]Illustrate the kinetics of leaching with concentration profile of mineral surface.
[7 marks]Differentiate between Order of reactions and Molecularity
[3 marks]Describe theory of Absolute Reaction Rate.
[4 marks]Explain Collision Theory of reaction kinetics.
[7 marks]Derive Arrhenius Equation
[3 marks]Draw process flow sheet of Cu extraction with important parameters involved in the process.
[4 marks]Differentiate between electro winning and electro reefing.1
[7 marks]