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