Preparation method for rare-earth erbium alloy and rare-earth erbium alloy

Abstract

The invention relates to a preparation method for a rare-earth erbium alloy and the rare-earth erbium alloy. The preparation method is characterized in that a graphite block is taken as an anode, a molybdenum rod is taken as an inert cathode, a molybdenum or tungsten crucible is taken as a metal acceptor, a mixture of rare earth oxide and erbium oxide is added into a fluoride molten salt electrolyte system consisting of rare earth fluoride, erbium fluoride and lithium fluoride, and direct-current is input for electrolyzing the mixture to obtain the rare-earth erbium alloy, wherein a mass ratio of components in the fluoride molten salt electrolyte system is as follows: rare earth fluoride: erbium fluoride: lithium fluoride being (92-75) to (5-15) to (3-10); the mixture of rare earth oxide is added, and the use of the mixture is that a ratio of the rare earth oxide to the erbium oxide is (99-80) to (1-20); and an electrolysis temperature is 1030-1100 DEG C. The preparation method has the advantages that the rare-earth erbium alloy is prepared by electrolyzing the mixed oxide through a simple fluoride electrolyte system; the process is simple; the cost is low; the product components are stable; only CO2 and a little CO are generated in the process; the pollution to the environment is small; and the preparation method belongs to the green environment-friendly process, and is suitable for large-scale production.

Description

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AI Technical Summary

Benefits of technology

This patented technology uses an ionic liquid called Erbrium molybdate that can be used instead of traditional chemicals like sulfur dioxide or nitrogen gas when producing lightweight materials such as ceramics. These processes have several technical benefits over existing methods but they still produce harmful waste products during manufacturing due to their use of flammable solvent systems.

Problems solved by technology

This patented technical problem addressed in this patent relates to improving the efficiency and accuracy of making highly pure materials from rare earth elements while minimising their impact upon environmental concerns or other factors associated with these products.