High-purity anaerobic selenium vacuum rectifying apparatus

Abstract

The invention discloses a high-purity anaerobic selenium vacuum rectifying apparatus. The apparatus comprises an upper section furnace body and a lower section furnace body. A condensation chamber isarranged inside the upper section furnace body, a rectifying chamber is arranged inside the lower section furnace body, the condensation chamber and the rectifying chamber are connected through a steam pipe, the included angle between the steam pipe and the rectifying chamber is 5-10 degrees, and the condensation chamber, the rectifying chamber and the steam pipe are each wrapped by a heating device; a plurality of condensation discs are sequentially arranged inside the condensation chamber from top to bottom, and a plurality of evaporation discs are sequentially arranged inside the rectifyingchamber from top to bottom; a vacuumizing hole is formed in the upper end of the condensation chamber, and a finished product outlet is formed in the lower end of the condensation chamber; a materialinlet is formed in the upper end of the rectifying chamber, and a defective material outlet is formed in the lower end of the rectifying chamber; the condensation chamber and the rectifying chamber are made of quartz materials. The apparatus is simple in structure, convenient to manufacture, easy to maintain, high in production efficiency, high in purity and large in yield.

Description

technical field [0001] The invention relates to a high-purity oxygen-free selenium vacuum rectification device, which belongs to the technical field of high-purity material preparation devices. Background technique [0002] High-purity scattered metals play an extremely important role in the field of contemporary high-tech new materials as electronic, optoelectronic and optical materials. High-purity selenium is an important sensor material, and alloys composed of tellurium and arsenic are the raw materials for photoconductive drums and photoconductive plates used in electrostatic copiers. Selenium can also be used to prepare photoelectric sensors such as semiconductor refrigerators and photocells. Lead selenide is an important infrared optical material and can be used to prepare 3-5 μm infrared detectors. At present, selenium has been widely used in electronics industry, glass industry, chemical pigment industry, metallurgical industry, agriculture, biological field, cosme...

AI Technical Summary

Problems solved by technology

Because selenium can directly react with hydrogen, oxygen, sulfur, etc., and can directly combine with metals to form selenides, the distillation equipment for preparing high-purity selenium is basically made of quartz, which makes it difficult to expand the distillation equipment and limited production capacity.

Although the selenium vacuum distillation-condensation integrated equipment proposed in the patent CN200610122508.4 can be used for industrial production of 5N or 6N high-purity selenium, it also has the problems of low production efficiency, long distillation time and low output

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