Problem 1

Copper ore contains 16% copper, 30% iron, 32% sulphur and 22% SiO₂. The smelting of this ore produces a matte whose grade is 50%. The flux is limestone and the slag contains 14%CaO.

Heat of formation of slag  of slag .Air is supplied at 298k. Gases leave the furnace at 500k. Slag and matte leave the furnace at 1400K.


Calculate:

a) Weight of  per tonne of ore.

b) Total heat supplied from all sources per tonne of ore.

c) Total heat leaving the furnace (itemized)