多金属复杂物料提取高纯氧化碲的生产实践

摘要

According to production practice, it studied the comprehensive utilization of multi-metal materials copper slag in non-ferrous smelting. Through grinding-room temperature oxidation leaching- sulfur dioxide reduction-catalytic oxidation process, 79.2% high purity tellurium oxide is obtained, silver, copper, bismuth can be separated effectively, gold and other precious metal in the slag can be concentrated.%系统介绍了利用有色冶炼二次资源——多金属物料铜渣提取高纯氧化碲的工艺,明确了经实践验证的工艺流程与操作条件. 生产实践证明, 采用磨料-常温氧化浸出-二氧化硫还原-催化氧化的工艺,可将碲提纯为含碲达79.2%以上的高纯氧化碲,银、铜、铋等金属可以有效分离,渣料中的微量金及其它贵金属可得到富集.