Metal recovery device for production of germanium tetrachloride

Abstract

The invention discloses a metal recovery device for the production of germanium tetrachloride. The metal recovery device comprises a reaction chamber, a condensing chamber and a recovery chamber, wherein an exhaust pipe is arranged at the top of the reaction chamber; a liquid outlet pipe is arranged at the bottom of the reaction chamber; the exhaust pipe is connected with the condensing chamber; the liquid outlet pipe is connected with the recovery chamber; the condensing chamber is connected with the recovery chamber; a first adsorption column and a second adsorption column are arranged in the recovery chamber; a first material conveying pipe is wound on the first adsorption column; a second material conveying pipe is wound on the second adsorption column; one end of the first material conveying pipe is connected with the condensing chamber through a first connecting pipe, and the other end of the first material conveying pipe is connected with the condensing chamber through a second connecting pipe; and one end of the second material conveying pipe is connected with the liquid outlet pipe through a third connecting pipe, and the other end of the second material conveying pipe is connected with the liquid outlet pipe through a fourth connecting pipe. The metal recovery device for the production of germanium tetrachloride, which is provided by the invention, is simple to operate and high in recovery efficiency.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a metal recovery device for germanium tetrachloride production. Background technique [0002] Germanium is an important rare metal and the most important semiconductor material besides silicon. Germanium products are widely used in the semiconductor industry, aerospace, optical mobility communication, chemical catalysts, solar cells and other fields. Germanium is dispersed in many kinds of minerals and rocks, but its content is not enough to be directly extracted from the minerals. Therefore, the production of germanium includes three stages: preparation of germanium concentrate, extraction of germanium, and purification of germanium. At present, the source of germanium is mainly extracted from the pyrometallurgy of germanium lignite, or from the by-products of the heavy metal smelting process. [0003] High-purity germanium tetrachloride is an indispensable key raw mater...

AI Technical Summary

Problems solved by technology

[0004] The currently widely used high-purity germanium tetrachloride rectification process cannot remove metal impurities (Fe, Co, Cr, Mn, Cu, etc.), so it is necessary to do further research and improvement

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