用硫酸从某难处理氧化铜矿石中浸出铜试验研究

摘要

研究了从某难处理氧化铜矿石中酸浸铜,考察了硫酸质量浓度、液固体积质量比、搅拌速度、矿石粒度、浸出时间、温度对铜浸出率的影响.结果表明:在硫酸质量浓度165 g/L、液固体积质量比3:1、搅拌速度300 r/min、矿石粒度-74 μm占50%、浸出时间100 min、温度40 ℃条件下,铜浸出率为93%,试验效果较好.%Leaching of copper from a refractory copper oxide ore using sulfuric acid was researched.The effects of sulfuric acid concentration,liquid-to-solid ratio,ore fineness,leaching time and temperature on leaching of copper were examined.The results show that under the conditions of sulfuric acid concentration of 165 g/L,liquid-to-solid ratio of 3 : 1,stirring rate of 300 r/min,ore fineness of-74 μm occupying 50%,leaching time of 100 min and temperature of 40 ℃,the leaching rate of copper is 93%,the test effect is good.