摘要
对锌焙砂进行了一段酸性浸出试验研究,考察了搅拌速度、矿样粒度、浸出温度、初始酸度、液固比等因素对Zn和Fe浸出率的影响规律。试验结果表明:初始酸度和液固比是影响浸出的最重要因素,锌焙砂在55℃、初始酸度120 g/L、液固比6∶1和搅拌速度为500 r/m in的条件下浸出0.5 h,Zn的浸出率为81.33%、Fe的浸出率为3.45%,基本能够实现Zn、Fe的选择性浸出。
The test on single-stage acid leaching of zinc calcine had been proceed.The effects of stirring speed,particle size,leaching temperature,initial acidity of sulfuric acid and ratio of liquid to solid were studied on the leaching rates of zinc and iron.The results showed that initial acidity of sulfuric acid and liquid-solid ratio were the most important factors on leaching.Under the condition of leaching temperature 55℃,initial acidity of sulfuric acid 120 g/L,leaching time 0.5 h,liquid-solid ratio 6 ∶ 1 and stirring rate 500 r/min,the leaching rate of zinc and iron was 81.33% and 3.45% respectively,which basically achieved selective leaching of zinc and iron.
出处
《矿产保护与利用》
2011年第2期24-27,共4页
Conservation and Utilization of Mineral Resources
关键词
锌焙砂
一段酸性浸出
选择性浸出
浸出率
zinc calcine
single-stage acid leaching
selective leaching
leaching rate
