A minerals processing separator is fed 15000 kg/h of slurry containing 10% hematite , 15% lime and the rest is water . In operation , water containing lime is filtered and hematite is retained at the first stage. The filtrate is therefore dried evaporating water leaving behind lime . The thick liquor leaving the evaporator contains 45% Lime, 2% Hematite and the rest of the water. Calculate the : (a) hematite retained (kg/h) (b) Water evaporated (kg/h) (c) Thick Liqour (kg/h)