Rare earth fluoride and its production method

Abstract

The invention discloses a rare earth fluoride, and the purpose of obtaining a high-quality rare earth fluoride can be achieved by using a distillation purification method to reduce non rare earth impurities in a commercially available rare earth fluoride. A production method of the rare earth fluoride is simple, and the rare earth fluoride product quality is stable. The development and application of high pure rare earth metals and alloys and rare earth fluoride function materials can be facilitated.

Description

technical field [0001] The invention relates to a rare earth fluoride and a production method thereof, in particular to distilling and purifying the rare earth fluoride through a distillation method, and belongs to the field of rare earth halide preparation. Background technique [0002] Rare earth halides, including rare earth fluorides and rare earth chlorides, are important raw materials for preparing rare earth metals by electrolysis and calcithermal reduction. With the development of science and technology, the application of rare earth fluorides as raw materials for functional materials is becoming more and more extensive, and the dosage is increasing, which puts forward stricter requirements on the quality of rare earth fluorides. [0003] At present, the preparation of rare earth fluorides is mainly divided into wet preparation process and dry preparation process. [0004] The wet preparation process is to react rare earth material liquid with hydrofluoric acid or p...

AI Technical Summary

Problems solved by technology

Therefore, the application and development of high-purity rare earth metals and alloys and rare earth fluoride functional materials in my country are largely restricted.