Abstract

The values of pH, temperature and initial concentrations of valuable components have influence on recovery efficiency of zirconium and rare earth elements (REE) from pregnant solutions of nitric-acid leaching of eudialyte concentrate by the chemical deposition method. Zirconium and rare earths exhibit selective recoverability of 99.95% and 87.50%, respectively. The loss of REE is 8.0% with zirconium product and 4.5% with pregnant solution. Micromorphology, structural chemistry and chemical composition of products are analyzed using the scanning electron microscopy, IR spectroscopy and X-ray fluorescence analysis.

中文翻译：

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非均匀应力场中结构性岩石和材料的断裂

摘要

pH，温度和有价值成分的初始浓度值会影响通过化学沉积方法从富余透析液浓缩液硝酸浸出的孕妇溶液中​​锆和稀土元素（REE）的回收效率。锆和稀土的选择性回收率分别为99.95％和87.50％。锆产品的REE损失为8.0％，母液中的REE损失为4.5％。使用扫描电子显微镜，红外光谱和X射线荧光分析法分析产品的微观形貌，结构化学和化学组成。