Do Yourself –II
In converting matte the following reactions occur
The air is blown in at 50 and 1210 mm Hg total pressure. The gases exit at 1200 and 775 mm Hg pressure. The converting operation is done without the use of fuel. Air is stoichiometric in amount. The air is moist and the relative humidity of the air is 50 mm Hg at 50 the vapour pressure of water at saturation is 92.5mm Hg). The matte contains 50% Cu.
Calculate (a) The volume of dry air at 273 K and 1 atm. Pressure (b) The volume of moist air at 323K and 1210K
Answer: (a) 1098.7 m3 (b)849 m3
1) Ray, H.S; Sridhar, R and Abraham, K.P: Extraction of non ferrous metals.
2) Rosenquist : Principles of extractive metallurgy
3) Butts, Allison: Metallurgical Problems, McGraw Hill Book Company, 1943
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