Study on the extraction of poor scandium from low-grade rare earth ores

IF 1.3 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

International Journal of Cast Metals Research Pub Date : 2023-04-07 DOI:10.1080/13640461.2023.2199505

Xiaojun Yang, Xunmei Zhu, Guoliang Yin, Kun Zhou, Zhenhua Feng, Kun Zhu

引用次数: 0

Abstract

ABSTRACT Based on the analysis of chemical composition and the phase of scandium-containing clay type rare earth ore in a place in China, it is found that the content of scandium in the ore is 18.55 g/t. Due to the low leaching rate of direct acid leaching, the effect of the roasting process on the leaching rate of scandium from the raw ore was investigated. By comparing the operation of the two leaching processes, oxidised roasting-hydrochloric acid leaching and alkali roasting-hydrochloric acid leaching, we obtain the optimal technical conditions for both leaching processes. At the same time, the mechanism of alkali roasting was investigated and the conclusions obtained are of some reference for the extraction of scandium from low-grade rare earth ores.

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从低品位稀土矿石中提取贫钪的研究

摘要通过对我国某地区含钪粘土型稀土矿的化学成分和物相分析，发现该矿中钪含量为18.55 g/t。由于直接酸浸的浸出率较低，研究了焙烧工艺对原矿中钪浸出率的影响。通过对氧化焙烧盐酸浸出和碱焙烧盐酸浸出两种浸出工艺的操作比较，得出了两种浸出过程的最佳工艺条件。同时对碱焙烧机理进行了研究，所得结论对低品位稀土矿中钪的提取具有一定的参考价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Cast Metals Research 工程技术-冶金工程

CiteScore

2.70

自引率

7.10%

发文量

审稿时长

7.5 months

期刊介绍： The International Journal of Cast Metals Research is devoted to the dissemination of peer reviewed information on the science and engineering of cast metals, solidification and casting processes. Assured production of high integrity castings requires an integrated approach that optimises casting, mould and gating design; mould materials and binders; alloy composition and microstructure; metal melting, modification and handling; dimensional control; and finishing and post-treatment of the casting. The Journal reports advances in both the fundamental science and materials and production engineering contributing to the successful manufacture of fit for purpose castings.