川西含钪稀土矿中钪的赋存状态研究

Study on Occurrence State of Scandium of Scandium-Containing Rare Earth Ore in Western of Sichuan Province

采用化学分析、X-衍射分析、偏光显微分析、电子探针和能谱分析对川西某稀土矿中载钪矿物种类、含量及其嵌布特征进行分析,为钪资源的综合利用提供重要的研究依据。结果表明,矿石中的钪主要以离子吸附分布于蚀变的黏土矿物（蒙脱石、滑石）中,这部分钪可以通过直接浸出的方法回收;另有部分钪主要以类质同象的形式分布于角闪石中,该部分钪可通过富集角闪石以达到富集钪的目的。

The scandium containing mineral type,content and dissemination characteristics of a rare earth mine in western of Sichuan province were analyzed by chemical analysis,X-diffraction,polarized light microscopy and electron probe spectroscopy,which provides an important research basis for comprehensive utilization of scandium. The results show that scandium mainly distributed in the altered clay minerals（ smectite,talc） by ion adsorption,which can be recovered by direct leaching method. Another part of scandium is distributed mainly in the amphibole as isomorphism. This part of scandium can be enriched with beneficiation of hornblende.