A Laboratory Investigation was carried out on a copper sulphide-oxide ore to evaluate the flotation response of the material. Two modes of flotation were evaluated which are presented below. (1) Sulphide Rougher Fractionation Flotation only. This was a flotation test yielding four (4) timed rougher concentates. The laboratory metallurgical data generated as shown in the Table 1 below. Table 1 Stream Time Weight Grade (minutes) % Cu Sulphide Mineral Separation Sulphide Rougher Concentrate 1 10.75 27.77 Sulphide Rougher Concentrate 2 11.631 22.67 Sulphide Rougher Concentrate 31 13.06 15.21 Sulphide Rougher Concentrate 5 14.001 12.63 Sulphide tailings 198.07 2.53 2 Do the following: (a) Draw the flowsheet for the process and workout the material balance equations (b) Using Excel, generate the material balance, which should include the combined concentrate (c) Using excel material balance, plot the Grade-Recovery profile and Flotation Kinetics profile