Methods of refining crude lead and lead alloys from copper

摘要

method u0440u0430u0444u0438u043du0438u0440u043eu0432u0430u043du0438u00a0 rough lead or lead alloys of copper with a rough lead or lead alloy, the introduction of the steel u043cu0435u0442u0430u043bu043bu0438u0447 u0435u0441u043au043eu0433u043e zinc, subsequent mixing melt, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, metallic zinc u0432u0432u043eu0434u00a0u0442 temperature melt 410450u0441 tentatively u043du0430u0433u0440u0435u0442u044bu043c to 80120u0441.