500 Kg of a copper ore, with a composition of 12% SO4Cu, 3% H20 and 85% inerts, is subjected to an extraction with 3000 Kg of water in simple contact. The amount of solution retained by the solids is 0.8 Kg/Kg of inerts. Calculate:

1)The compositions of the upper flow (extract) and the lower flow (raffinate).

2) The amounts of extract and refined.

3) The percentage of extracted SO4Cu.

THE PROBLEM NEEDS TO BE SOLVED BY THE TRIANGLE RECTANGLE DIAGRAM METHOD, PLEASE INCLUDE THE DIAGRAM