摘要
研究了以氧化焙烧—浸出工艺从某红土镍矿中回收镍,考察了矿石焙烧、浸出工艺条件对镍回收率的影响。试验结果表明:在矿石粒度-0.074mm占75%、焙烧温度800℃、焙烧时间2h、浸出温度70℃、浸出时间80min、液固体积质量比1.5∶1条件下,镍浸出率在81%左右。
The experimental study on recovery of nickel from a low grade nickel laterite was carried out by the process of oxidizing roasting and sulfuric acid leaching. The influence of ore roasting and leaching process parameters on nickel leaching were examined. The results showed that leaching rate of nickel reached 81. 84% under the optimum conditions of ore particle size of 0. 074 mm accounting for 70% ,roased temperature of 800 ℃ ,roased time of 2 h,leaching temperature of 70℃ ,leaching time of 80 min and liquid to solide of 1.5.
出处
《湿法冶金》
CAS
北大核心
2013年第2期86-88,共3页
Hydrometallurgy of China
关键词
红土镍矿
氧化焙烧
硫酸
浸出
镍
low grade nickel laterite
oxidizing roasting
sulfuric acid
leaching
nickel
