RECOVERY OF RARE EARTH ELEMENTS

文件类型：PDF文档
文件大小：1859K
A process for treating an ore containing at least one refractory mineral comprising a rare earth element, the process comprising the steps : (i) combining the ore with a solid flux to form a mixture; (ii) heating the mixture formed in step (i) to form a fused mixture; (iii) cooling the fused mixture to form a fused solid; and (iv) treating the fused solid with an acidic solution to dissolve the rare earth element.