Abstract: The scheelite rough concentrate of a dressing plant contains 77.24% WO₃ and 1.21% BaO. After determining the optimal conditions, a concentrate assaying 37.79% WO₃ with a recovery of 71.80% was successfully obtained by Petrov heating concentration. Due to the concentrate still contained 20% barite, the separation of scheelite and barite was conducted using sulfate acid as the depressant of barite. Finally, the WO₃ grade and recovery of the scheelite concentrate were 62.06% and 65.61%, respectively. In addition, the acid corrosion of flotation equipment should be concerned in practical production.