POSSIBLE WAYS OF REFINING PRECIOUS GROUP METALS (PGM) OBTAINED FROM RECYCLING OF THE USED AUTO CATALYTIC CONVERTERS

摘要

The research involved measuring of the speed of zinc oxide with carbon reducers. Samples weighing between 60 and 100 mg were tested with the use of thermogravimetric analysis within the range of temperatures up to 1 100 °C in nitrogen atmosphere. The speed of heating was 20 deg min~(-1). The research involved also reducers normally used in reduction processes. The results obtained prove that some of the alternative reducers may be used for industrial purposes.