A feed stream flowing at 1000 kg/h contains 20% KNO3 and 80% H2O. The stream enters an evaporator where part of water is evaporated and the stream exits with 50% KNO3. The evaporator outlet stream enters a crystallizer. The bottom product stream of the crystallizer contains 4% H2O and the balance is KNO3. The outlet stream from the crystallizer is recycled and combined with the fresh feed stream. The recycle stream consists of 0.6 kg KNO3/kg H2O. Draw and label the process flowchart and calculate the recycle to fresh feed ratio.