用复合浸出剂浸取风化壳淋积型稀土矿中的稀土研究

A Study on Leaching Rare Earth from the Weathered Elution deposited Rare Earth Ore with Compound Leaching Reagent

研究了采用新型复合浸出剂来浸取风化壳淋积型稀土矿中的稀土,结果表明:新型复合浸出剂浸取稀土浸出率高于单一浸取剂,能减少某些非稀土杂质元素的浸出,浸取后的浸出剂经提纯后能反复使用,而且这种新的稀土浸出剂具有来源广、价格便宜、不污染环境等优点,有推广应用价值。

The leaching rare earth from the weathered elution- deposited rare earth ore with a new type compound leaching reagent was investigated. The results showed that the leaching rate of RE was higher than the single leaching reagent. It reduced the no - rare - earth impurities leaching. As being purified, the compound leaching reagent could be re - used for leaching rare earth from the weathered elution -deposited rare earth ore. The compound leaching reagent has many virtues such as widely source, cheap value and no pollution to environment. The process was worthy widely application.