摘要
某玻璃粉废料中含有稀土元素,其中氧化铈质量分数为2.17g/t。研究了采用酸浸—沉淀工艺从玻璃粉中回收氧化铈,考察了盐酸用量、液固体积质量比、浸出温度、浸出时间等因素对氧化铈浸出率的影响。结果表明:在盐酸用量150g/L、液固体积质量比6∶1、浸出温度80℃、浸出时间3h条件下,铈浸出率为92.64%。此方法可用于从固体废弃物中回收稀土。
Recovery of cerium from waste glass powder containing rare earth elements by hydrochloric acid leaching-precipitation was investigated. The effects of hydrochloric acid concentration, liquid-to- solid ratio, leaching time, temperature on leaching of cerium were examined. The results show that leaching rate of 92.64% is obtained under the conditions of leaching time of 3 h, hydrochloric acid concentration of 150 g/L, temperature of 80℃, liquid-to-solid ratio of 6 ： 1. The results provided an alternative process for recovering rare earths from solid waste.
出处
《湿法冶金》
CAS
北大核心
2017年第3期197-199,共3页
Hydrometallurgy of China
基金
陕西省科技厅基金资助项目(2014SJ-04)
关键词
玻璃粉
氧化铈
浸出
回收
glass powder
cerium oxide
leaching
recovery
