Application of Ultrasonic Wave on Platinum Group Metals Recovery from Zirconia Oxygen Sensor

This paper gives a method for platinum group metals recovery from zirconia oxygen sensor by ultrasonic wave which is simple,efficient,non-toxic and environmentally friendly. Platinum group metals as active electrode are widely used in zirconia oxygen sensor. As resource scarcity and high price of platinum group metals,recovery of platinum group metals from the waste zirconia oxygen sensor has great significance in terms of economic and environmental.