Non - Ferrous Extraction of Metals Lecture Notes
36. 34 Chapter 2 Extraction of Non-Ferrous Metals Carbon does not reduce ZnO until 11200 Lead Bullion (Rich 70-80% Pb): C, since at this temperature Zn gets vaporized. After reduction complete the molten slag and Pb are taken out from the furnace hearth at the melting point of the slag. Hence, Zn gets collected.
