Method for converting yttrium oxide into yttrium acetate crystal

Abstract

The invention relates to a method for converting yttrium oxide into an yttrium acetate crystal. The method is characterized by comprising the following steps of: pumping analytically-pure glacial acetic acid and deionized water into a reaction kettle according to the volume ratio of 1:1, uniformly stirring and heating until the mixture is boiled; rotating a stirring paddle, and slowly adding the weighted yttrium oxide into the reaction kettle, wherein the mole rate of the addition of the yttrium oxide to the addition of acetic acid is 1:3.9; after the reaction is ended completely, heating a liquid material to 110-125 DEG C, and then, stopping heating to enable the liquid material in the reaction kettle to naturally cool and crystallize; when the liquid material is cooled to the temperature below 50 DEG C, enabling the stirring paddle to stop stirring, filtering a liquid through a filter tank, and centrifugally dewatering; and airing the dewatered reactant in a dust-free room to realize natural evaporation. The rare earth yttrium oxide is used for manufacturing the yttrium acetate crystal, so that the method is simple in process flow, high in production efficiency, low in energy consumption and capable of reducing the production cost and environment pollution; and the yttrium acetate crystal product is high in purity and total rare earth quantity, large in crystal particle and pure in color and luster, and the added value of a product can be increased.

Description

technical field

[0001] The invention relates to a preparation method of rare earth acetate, in particular to a method for converting yttrium oxide into yttrium acetate crystals. Background technique

[0002] In recent years, with the development of rare earth new materials in electronics, chemical industry, environmental protection and other related fields, rare earth materials play an indispensable key role in modern emerging green energy technology, high-tech environmental protection technology and national defense military industry system. Developed countries list rare earths as strategic resources, and regard rare earth functional materials research and related application industries as key development areas. Therefore, in order to improve the utilization efficiency of rare earth resources and realize the sustainable utilization and development of rare earth resources, develop high value-added and deep processing rare earth products become a key research direction. At p...