Define on line purging.
[3 marks]Explain the oxidation process in LD converter during liquid steel making.
[4 marks].Discuss the polymorphic transformation of silica. What is meant by refractoriness under load of a material? Explain
[7 marks]Describe the structure of kaolinite.
[3 marks]Differ between biotite and muscovite.
[4 marks]Explain the phase diagram of Fe-Fe C.3
[7 marks]Explain the phase diagram of Calcia and Magnesia
Explain the difference between nucleation and growth.
[3 marks]Explain Growth phenomena.
[4 marks]Explain the model of nucleation with mathematical derivation
[7 marks]What is bursting of magchrome bricks?
[3 marks]What is recrystallization and abnormal grain growth?
[4 marks]Write down the processing of synthesis of mag carbon bricks.
[7 marks]Describe the occurrences of chrome ore.
[3 marks]Define normal and inverse spinel.
[4 marks]Define steel. Explain different types of steel.
[7 marks]Why gamma alumina is called pseudo spinel?
[3 marks]Discuss various types of alumina.
[4 marks]Describe synthesis of alumina by Bayer’s process.
[7 marks]What is sea water magnesia?
[3 marks]Write various applications of alumina.
[4 marks]Explain the role of silica, soda ash and alumina in soda lime silica glass.
[7 marks]Define aluminosilicates with examples.
[3 marks]Describe occurrences of alumina.
[4 marks]What are raw materials normally used in glass making? Explain the parameters for raw material selection.
[7 marks]