Rectification column for removing hydrogen containing foreign matter in germanic chloride

Abstract

The invention relates to a distillation column eliminating the CH impurity and the HCI impurity in germanium tetrachloride for optical fibers, and the distillation column is mainly used for solving the problem for eliminating the CH impurity and the HCI impurity in the germanium tetrachloride, and the distillation column belongs to the field of special equipment. The distillation column is mainly composed of a column reactor, a column pipe and a column head. The column head is provided with a spiral cooling pipe, a cooling water inlet and a cooling water outlet, and the top of the column head is provided with a gas exit. A pipeline which is linked with a swinging head discharging port is arranged on the gas exit, and the lower part is pumped in the bottom of the column head. The bottom of the swinging head discharging port is provided with the pipeline to be pumped in the upper part of the column pipe, and the column reactor is provided with a feed port, a gas supply port, a temperature monitoring port and a waste discharge port.

Description

technical field [0001] The invention relates to a rectification tower for removing hydrogen-containing impurities in germanium tetrachloride in the production of germanium tetrachloride products for optical fibers, especially a rectification tower for removing CH and HCl impurities. It belongs to the field of special equipment. Background technique [0002] The current conventional distillation tower can remove metal impurities such as Fe, Co, Cr, Mn, Cu, etc., but cannot effectively remove hydrogen-containing impurities (such as CH, HCl). Using hydrogen chloride gas or anhydrous chlorine alone to purify germanium tetrachloride can only remove arsenic and other similar impurities, but cannot effectively remove hydrogen-containing impurities; although high-temperature devices can be used to process tetrachloride at high temperatures above 800 ° germanium, the hydrogen atoms in it are chlorinated by chlorine gas to hydrogen chloride, and finally the removal of hydrogen-contai...

AI Technical Summary

Problems solved by technology

[0002] The current conventional distillation tower can remove metal impurities such as Fe, Co, Cr, Mn, Cu, etc., but cannot effectively remove hydrogen-containing impurities (such as CH, HCl)

Using hydrogen chloride gas or anhydrous chlorine alone to purify germanium tetrachloride can only remove arsenic and other similar impurities, but cannot effectively remove hydrogen-containing impurities; although high-temperature devices can be used to process tetrachloride at high temperatures above 800 ° Germanium, so that the hydrogen atoms in it are chlorinated by chlorine to hydrogen chloride, and finally the removal of hydrogen-containing impurities is achieved, but this process has very high requirements for equipment and complicated operation

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