含镍废料浸出条件及循环逆流浸出工艺研究  

Acid Leaching of a Nickelferrous Spent Material and the Effect of Circular Countercurrent Leaching

作　　者：刘岩[1] 王虹[1] 蒋贵权[1] 张广立[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《矿冶工程》2006年第5期44-46,共3页Mining and Metallurgical Engineering

摘　　要：研究了含镍废料的酸浸工艺。考察了硫酸浓度、浸出温度、浸出时间及液固比等因素对镍浸出率的影响。设计正交实验L9(34)得到了镍浸出的最佳工艺条件,即硫酸浓度2.4 mol/L,液固比4∶1,浸出温度50℃下浸出1.5 h。采用闭路循环浸出,提高了硫酸的利用率和镍的浸出率。Sulfuric acid leaching technology of a nickelferrous spent material was studied. The effects of sulfuric acid concentration, leaching temperature, leaching time and liquid/solid ratio on the leaching rate of nickel were investigated. Optimum process parameters, namely, sulfuric acid concentration of 2.4 mol/L, liquid/solid ratio of 4： 1, leaching temperature of 50 ℃ and leaching duration of 1.5 h, were ascertained through orthogonal experiments of L9 （3^4）. The utilization ratio of sulfuric acid and the leaching rate of nickel were improved after adopting circular countercurrent leaching.

关 键 词：镍 含镍废料 回收 循环逆流浸出 

分 类 号：TF111[冶金工程—冶金物理化学]