| 摘要 |
A continuous method and apparatus for removing copper from lead comprises introducing molten lead and sulphur to the upper end of a vertical stirred reaction vessel, maintaining a dispersion of sulphur in the lead without substantial back-mixing and thereafter recovering the dispersion and allowing the formed copper sulphide to float to the surface. The process is suitable for continuous operation on a small scale, e.g. 3 tons per hour, is environmentally acceptable and requires a lead inventory only about one third of that required by conventional batch processes. |
