Extraction and optimization of neodymium from molten fluoride electrolysis

被引：26

作者：

Sarfo, Prince ^{[1
]}

Das, Avimanyu ^{[1
]}

Young, Courtney ^{[1
]}

机构：

[1] Montana Tech Univ, Met & Mat Engn, 1300 West Pk St, Butte, MT 59701 USA

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2021年 / 256卷

关键词：

Electrolysis; Statistical modeling; Neodymium; Molten fluoride; Optimization; CATHODIC PROCESSES; REDUCTION; RECOVERY; SLAG;

D O I：

10.1016/j.seppur.2020.117770

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Most rare earth elements (REEs) are critical materials of extreme prominence. Because of their criticality, their convalescence into metal from rare earth oxide (REO) and their recycling from end-of-life materials are essential for the proficient use and safeguard of natural resources. With pyrometallurgical approaches using potential versus partial oxidation pressure (E-pO2-) diagrams, the conditions for making neodymium are established by which REOs are dissolved in a molten halide bath to form pure Nd metal in the electrolysis process. This paper also expands on how the diagrams are used and verified through design of experiment studies, which result in statistical rejoin models based on molten salt electrolysis for extracting neodymium from its oxide in a fluoride bath.

引用

页数：8

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