PREPARATION METHOD FOR SCANDIUM FLUORIDE

Provided is a preparation method for scandium fluoride, comprising: performing extraction using an organic extracting agent and a scandium-containing solution to obtain a scandium-containing organic phase; and subjecting the scandium-containing organic phase to a precipitation reaction with a fluorine-containing mixed solution to obtain scandium fluoride. Scandium element in a scandium-containing solution is extracted primarily by means of an extraction process to obtain a scandium-containing organic phase, and then the scandium-containing organic phase is subjected to a precipitation reaction or back-extraction with a fluorine-containing mixed solution so as to obtain a scandium fluoride product. The method has the advantages of low cost, short process, high yield of scandium fluoride, etc. L'invention concerne une méthode de préparation de fluorure de scandium, comprenant : la réalisation d'une extraction à l'aide d'un agent d'extraction organique et d'une solution contenant du scandium pour obtenir une pha