Method of preparing coarse beryllium powder and mode of preparing ultra-high purity metal beryllium

Abstract

The invention relates to a method of preparing coarse beryllium powder and a mode of preparing ultra-high purity metal beryllium. The coarse beryllium powder is prepared by mixing and heating beryllium fluoride and a magnesium metal. The method comprises the following steps of: adding beryllium fluoride and the magnesium metal into a reduction furnace, powering on for heating, performing crushingto prepare a material slag cake, separating a beryllium bead magnesium fluoride slag, crushing the beryllium bead, and performing quenching and drying to form the coarse beryllium powder. The coarse beryllium powder is purified and smelt to form a beryllium ingot. According to the method of preparing the coarse beryllium powder and the mode of preparing the ultra-high purity metal beryllium, all beryllium fluoride can be reduced at a time; the energy is saved; the environment is protected; a reduction rate is high; a direct recovery rate is greatly increased; the time is short; no other medicine than magnesium is added; the cost is low; a process flow is simple; and the beryllium is high in purity.

Description

technical field [0001] The invention relates to the field of metal beryllium purification, in particular to a method for preparing coarse beryllium powder and a method for preparing ultra-high-purity metal beryllium. Background technique [0002] Beryllium is a material with special properties, and some of its properties, especially nuclear and physical properties, cannot be replaced by any other metal materials. The density of beryllium is low, the specific elastic modulus is at least 6 times that of any other metal, light weight, high rigidity, good thermal performance, high melting point, high specific heat, high thermal conductivity and suitable thermal expansion rate, etc. Excellent performance, sound transmission faster than any other metal. Therefore, the application scope of beryllium is mainly concentrated in nuclear industry, weapon system, aerospace industry, X-ray instrument, electronic information system, automobile industry, household appliances and other fiel...

AI Technical Summary

Problems solved by technology

[0004] The existing technology of preparing coarse beryllium powder by reducing beryllium fluoride, due to the low reduction rate of beryllium fluoride and low direct yield of beryllium fluoride, there are many procedures and many impurities introduced during subsequent treatment and recovery of part of beryllium fluoride that has not been reduced , high cost, time-consuming, lower production efficiency, and easy to pollute the environment

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