铊在铅锌矿选冶过程中的转移及环境影响风险

Migrationand Environmental Risk of Thallium in Beneficiation and Smelting Process of Lead-Zinc Ore

对铊在铅锌矿选、冶过程中的转移及环境影响风险进行了研究。结果表明,铅锌矿选矿过程中95.94%的铊转移至尾矿,铅冶炼过程中88.33%的铊转移至烟气中,在锌冶炼过程中90.51%的铊主要转移至铜镉、钴渣中。对各类尾矿及废渣进行合理堆放,提高资源再利用技术水平,是降低铊污染的主要途径。

Migration and environmental risk of thallium in beneficiation and smelt process of leadzinc ore were studied. The results show that around 95. 94% of thallium transfered to tailings during beneficiation,around 88. 33% of thallium migrated to metallurgical off-gas in lead smelt process,and90. 51% of thallium migrated to copper-cadmium and cobalt residue in zinc smelt process. So,it is very important to improve the utilization technology of recycling resources by rationally stacking the tails and residue.