Process for recovering rare earth elements and rare metals

摘要

A process for recovering at least one rare earth element is provided. Such a process comprises (i) obtaining an acidic composition comprising at least one rare earth element and optionally at least one rare metal; reacting the composition with a precipitating agent, resulting in a first rare earth element And optionally, substantially selectively precipitating the first rare metal. For example, various rare earth elements (for example, scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, etc.) and various rare metals ( For example, indium, zirconium, lithium, gallium) can be extracted by using such a process.