【摘要】 对深海粘土中稀土元素钇的酸浸过程进行了探讨,考察了酸种类、酸浓度、液固比、浸出时间、浸出温度等因素对深海粘土中稀土元素钇浸出的影响。结果表明:盐酸与硝酸浸出效果相近,均明显优于硫酸;最佳浸出条件为:盐酸浓度2 mol/L、液固比4∶1、温度60℃、浸出时间60 min,此时钇浸出率可达94.53%。更多还原

【Abstract】 Acid leaching of rare earth Y from deep-sea clay was discussed. Effects of several factors,including acid type,acid concentration,liquid-solid ratio,leaching temperature and time,on leaching rate of rare earth Y were investigated. It is found that both hydrochloric acid and nitric acid have the similar leaching effects,better than sulfuric acid. Under the optimum leaching conditions,including hydrochloric acid concentration at 2 mol/L,liquid-solid ratio at4 ∶1,leaching temperature at 60 ℃ and leaching time of 60 min,the leaching rate of Y reaches 94.53%.更多还原