Rapidly heating distillation device in titanium tetrachloride refining process

Abstract

The invention belongs to the technical field of titanium sponge production by a magnesium method and in particular relates to a rapidly heating distillation device in a titanium tetrachloride refining process. The invention adopts a technical scheme that: the rapidly heating distillation device in the titanium tetrachloride refining process comprises a distillation still, a distillation tower, a cooler, a respiration tank, a ground tank and a finished product storage tank which are connected with one another sequentially through pipelines. The rapidly heating distillation device has the advantages of raising the temperature uniformly and stably, realizing automation easily, increasing production yield by 30 percent, reducing energy consumption by 15 percent, greatly improving the purity of the products, saving energy and reducing consumption, greatly improving the quality of the products and protecting the surrounding environment, along with simple and rapid operation, stable production, good separation effect and low production cost.

Description

technical field [0001] The invention belongs to the technical field of producing sponge titanium by a magnesium method, in particular to a rapid heating distillation device in the process of refining titanium tetrachloride. Background technique [0002] In the refining process of titanium tetrachloride, according to the characteristics of the large difference between the high boiling point and low boiling point impurities in the crude titanium tetrachloride and the boiling point or relative volatility of titanium tetrachloride, the impurities are separated by distillation or rectification. Distillation is used to separate the high-boiling impurities that are easy to separate, and rectification is used to separate the difficult-to-separate low-boiling impurities. The distillation operation is carried out in the distillation tower, and the temperature at the bottom of the distillation tower is controlled to be slightly higher than the boiling point of titanium tetrachloride (a...

AI Technical Summary

Problems solved by technology

[0004] 1. Because the heating of the nickel wire wound outside the electromagnetic cylinder must be immersed in the TiCl4 liquid, if it is exposed to the liquid surface for a long time, it is easy to burn the nickel wire, and it must be stopped for replacement. low production output

[0005] 2. When repairing, dismantling or replacing the nickel wire on the electromagnetic cylinder, the overflow of TiCl4 in the kettle will react violently when it comes into contact with air, generating TiO2 and HCl gas, forming a large amount of acid mist around it, which not only corrodes buildings and equipment, it will seriously pollute the environment and cause harm to operators

[0006] 3. The contact area between the nickel wire wrapped around the electromagnetic cylinder and the TiCl4 liquid is small, and the temperature rise time of the TiCl4 liquid in the kettle from room temperature to vaporization condition is as long as 6 hours, resulting in high power consumption and high cost

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