摘要
The selective leaching and recovery of zinc in a zinciferous sediment from a synthetic wastewater treatment was investigated.The main composition of the sediment includes 6% zinc and other metal elements such as Ca,Fe,Cu,Mg.The effects of sulfuric acid concentration,temperature,leaching time and the liquid-to-solid ratio on the leaching rate of zinc were studied by single factor and orthogonal experiments.The maximum difference of leaching rate between zinc and iron,89.85%,was obtained by leaching under 170 g/L H2SO4 in liquid-to-solid ratio 4.2 mL/g at 65 ℃ for 1 h,and the leaching rates of zinc and iron were 91.20% and 1.35%,respectively.
The selective leaching and recovery of zinc in a zinciferous sediment from a synthetic wastewater treatment was investigated. The main composition of the sediment includes 6% zinc and other metal elements such as Ca, Fe, Cu, Mg. The effects of sulfuric acid concentration, temperature, leaching time and the liquid-to-solid ratio on the leaching rate of zinc were studied by single factor and orthogonal experiments. The maximum difference of leaching rate between zinc and iron, 89.85%, was obtained by leaching under 170 g/L H2SO4 in liquid-to-solid ratio 4.2 mL/g at 65 ℃ for 1 h, and the leaching rates of zinc and iron were 91.20% and 1.35%, respectively.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2008年第5期1269-1274,共6页
Transactions of Nonferrous Metals Society of China
作者简介
Corresponding author： PENG Bing; Tel： ＋86-731-8836804; E-mail： gaohuimei981 @ 126.com
