摘要
采用空气加压氧化法浸出富铜渣制备硫酸铜，通过试验确定了铜的最佳浸出条件。试验结果表明：在硫酸加入量为铜理论量的1．20倍、反应压力0．18 M Pa、浸出温度90℃、浸出时间3 h、空气过量系数1．6倍、液固体积质量比4∶1条件下，铜浸出率大于99．1％；浸出液通过除铁、蒸发浓缩结晶制得符合GB437-2009的硫酸铜；与空气直接氧化法相比，浸出时间缩短了3～4h，浸出效率大大提高。
The CuSO4·5H2O was prepared using copper residue by pressing oxidation using .The best leaching conditions were determined .The results show that under the conditions of temperature of 90℃ ,leaching time of 3 h ,excess air of 1 .6 times and the ratio between liquid volume and solid mass of 4∶1 ,the leaching of copper is greater than 99 .1% .The CuSO4·5H2O prepared from the lixivium by removing Fe ,evaporation and crystallization is in line with the GB437-2009 .The leaching time shortens by 3-4 h than air oxidation method ,leaching efficiency is greatly improved .
出处
《湿法冶金》
CAS
北大核心
2014年第3期182-184,187,共4页
Hydrometallurgy of China
关键词
富铜渣
加压氧化
硫酸
浸出
铜
copper slage
pressure oxidation
acid sulfate
leaching
copper
