A thermal dissociation reactor and its method for purifying coarse beryllium powder into ingots and the method for preparing ultra-high-purity metal beryllium

Abstract

The invention relates to a thermal dissociation reactor, a method for purifying coarse beryllium powder into ingots and a method for preparing ultra-high pure metallic beryllium. The thermal dissociation reactor comprises an iodine containing furnace, a low-temperature reactor and a high-temperature reactor, wherein the iodine containing furnace communicates with the low-temperature reactor, and the low-temperature reactor communicates with the high-temperature reactor. The method for purifying the coarse beryllium powder into the ingots through the thermal dissociation reactor comprises the following steps that the coarse beryllium powder and iodine are reacted in the thermal dissociation reactor, and the mass ratio of the coarse beryllium powder to the iodine is 5:1; beryllium iodide vapor is generated; the beryllium iodide vapor is thermally dissociated and decomposed into metallic beryllium and iodine vapor; collection is carried out to obtain pure beryllium powder; and the pure beryllium powder is smelted into the beryllium ingots in an electron beam smelting furnace. The thermal dissociation reactor is reasonable in structure, simple to assemble and convenient to use; and according to the method for purifying the coarse beryllium powder into the ingots through the thermal dissociation reactor, the operation is simple, the medicament is saved, the energy is saved, the environment is protected, the cost is low, and the purity of the beryllium is extremely high.

Description

technical field [0001] The invention relates to the field of metal beryllium purification, in particular to a thermal dissociation reactor and a method for purifying rough beryllium powder into ingots 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...

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Problems solved by technology

This process has various and lengthy techniques, many equipments, high energy consumption, high cost, many impurities introduced, many drugs used for impurity removal, low production efficiency, and ammonium fluoride generated by thermal decomposition will also cause environmental pollution.

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