Device for recovering titanium tetrachloride from tail gas discharged by titanium tetrachloride preparation process

Abstract

The utility model discloses a device for recovering titanium tetrachloride from tail gas discharged by a titanium tetrachloride preparation process. The device comprises an inlet end connecting flange, a baffle, a hinge baffle, a sieve plate, a shell, a gas pipeline, a gas outlet end connecting flange and a liquid outlet end connecting flange, an inlet end connecting flange is arranged at the topof the shell, a baffle is horizontally arranged at the upper part in the shell, a hinge baffle is arranged below the baffle, a sieve plate is arranged below the baffle, and through holes are formed inthe sieve plate, one end of the gas pipeline is arranged below the sieve plate, and the other end of the gas pipeline is arranged outside the shell and provided with a gas outlet end connecting flange at the port, and the liquid outlet end connecting flange is arranged on one side of the bottom of the shell. According to the device, gas-liquid separation can be effectively carried out, titanium tetrachloride remained in the tail gas is recycled, and the subsequent treatment cost is reduced; the device is simple in structure, convenient in processing and material taking, low in manufacturing cost, stable in operation, small in mounting space and capable of safely and effectively realizing separation, collection and utilization of products.

Description

technical field [0001] The invention relates to a device for recovering titanium tetrachloride from tail gas discharged from a process for preparing titanium tetrachloride, and belongs to the technical field of chemical industry and metallurgy. Background technique [0002] As an important chemical and metallurgical product, titanium tetrachloride is the main raw material for the production of titanium dioxide and titanium sponge. The process is produced by boiling chlorination, that is, using chlorine gas, titanium-rich materials, and petroleum coke in a chlorination furnace. The reaction is carried out to obtain titanium tetrachloride. Since the chlorination raw materials contain impurities such as water and volatile matter, while the main reaction is carried out in the chlorination furnace, it is easy to generate gas mixture products such as hydrogen chloride, silicon tetrachloride, and titanium tetrachloride. , What adopt at present is the multi-stage leaching rear conde...

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Problems solved by technology

[0003] The present invention aims to solve the problem that the recovered gas contains a large amount of hydrogen chloride and mixed gas, and entrains some gaseous titanium tetrachloride products. Since the final leaching terminal is not equipped with a separation and recovery device, the mixed waste gas contains part of the tetrachloride. Titanium enters the tail gas treatment system and is rinsed. During the rinse process, a large amount of lye needs to be prepared and sprayed repeatedly, resulting in an increase in the amount of wastewater generated, which not only causes waste, but also increases the cost of subsequent treatment. question

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