Basic Characterization and Recovery of Zinc by Acid Leaching of Steelmaking Dust from Sanming Iron and Steel Works
XU Rui YANG Li-mei HUANG Song-tao XU Zheng
National Engineering Laboratory of Biohydrometallurgy, General Research Institute for Non-Ferrous Metals National Engineering Laboratory of Biohydrometallurgy, General Research Institute for Non-Ferrous Metals National Engineering Laboratory of Biohydrometallurgy, General Research Institute for Non-Ferrous Metals
Abstract：The basic characterization of steelmaking dust from Shanming Iron and Steel Works, such as chemical composition, granular size distribution, phase, surface topography and elemental distribution were analyzed by using chemical analysis, XRD, wet screening, microscopic examination and SEM-EDS. And through the acid leaching condition experiments, the effects of initial acid concentration, MnO2 addition, temperature and leaching time on the final pH value and filtering performance of leaching slurry, and the leaching rate of Zn, Fe and SiO2 were investigated. The results showed that in under the conditions of temperature 25℃, initial acid concentration 26.6 g/L, MnO2 addition 0.4 g, leaching after 120 min and slurry pH value in 3.5~3.7, the leaching rate of Zn reached up to 98%, but the leaching rates of Fe and SiO2 were 0.22% and 9% respectively, in the same time the filtering performance was good.
徐瑞 杨丽梅 黄松涛 徐政. 三明炼钢粉尘的基本物性及酸浸回收锌的实验研究[J]. , 2013, 13(1): 48-54.
XU Rui YANG Li-mei HUANG Song-tao XU Zheng. Basic Characterization and Recovery of Zinc by Acid Leaching of Steelmaking Dust from Sanming Iron and Steel Works. , 2013, 13(1): 48-54.
2013, Vol. 13 
