Problem
Lead strearate with stage contact dryer Dry 2000 kg/day of pb(C17H35COO)2 Each plate can hand 1 kg Each dryer has 20 plates Dry from 30% to 5% of moisture, equilibrium moisture = 2% Area of plates = 1 m^2 Find the required temperature to be dried, time to drying Amount of hot air required, size of dryer.