低品位氧化锌烟尘还原–精馏技术制备超细锌粉  

Study on Preparation of Superfine Zinc Powder with the Reduction-Distillation Technique from Low-Grade Zinc Oxide Dust

作　　者：毕婷婷 夏妮 李桥龙 罗通 谢容生 

机构地区：[1]云南省生态环境工程评估中心,云南 昆明 [2]中国电建集团北京勘测设计研究院有限公司,北京 [3]云南东曼环保科技有限公司,云南 昆明

出　　处：《冶金工程》2020年第3期155-162,共8页Metallurgical Engineering

摘　　要：采用还原–精馏技术对低品位氧化锌烟尘制备超细锌粉进行了工业化试验。结果表明,超细锌粉的含锌纯度高达99.991%,锌直收率为93.199%。元素平衡结果表明,锌主要富集于产品超细锌粉中,铅元素主要富集于高铅锌中,其占比为92.32%。利用低品位氧化锌烟尘制备超细锌粉工艺可行,有价金属回收效果显著,能够为氧化锌烟尘高附加资源化利用提供参考。Industrialization test of preparation of superfine zinc powder with the reduction-distillation technique from low-grade zinc oxide dust was carried out. The results showed that the purity of zinc in superfine zinc powder was 99.991%, and the direct yield of zinc was 93.199%. Moreover, the results of element balance indicated that zinc was mainly concentrated in superfine zinc powder, and lead was mainly concentrated in high lead and zinc, accounting for 92.32%. It was feasible to prepare superfine zinc powder from low-grade zinc oxide dust, and the recovery effect of valuable metals was remarkable. This study provides a reference for the high additional resource utilization of zinc oxide dust.

关 键 词：氧化锌烟尘 低品位 超细锌粉 有价金属 

分 类 号：TF8[冶金工程—有色金属冶金]