Experimental Study on the Behavior of Lead during Melt Processing in a Low Oxygen Atmosphere

The behavior of lead contained in waste during melt process is considered to be affected by the melting temperature, the heating time, the atmosphere and the content of the main constituents of the ash, such as SiO2, Al2O3, CaO and Fe2O3. Experiments were conducted under ambient conditions with oxygen partial pressure down to approximately 5 × 10-3 MPa, which is easily achievable in actual melting operations. The experimental results also showed that the content of SiO2 and the other main constituents also have considerable influence.