Device for producing coarse titanium tetrachloride by low-temperature fluidizing chlorination

Abstract

The invention discloses a device for producing coarse titanium tetrachloride by low-temperature fluidizing chlorination. The device comprises a furnace top, a furnace body and a furnace bottom, wherein the furnace bottom is provided with a gas distributor which is communicated with a gas inlet pipe and comprises a chassis and a plurality of gas nozzles uniformly distributed on the chassis; a gas outlet of each gas nozzle is upward; the furnace body is in a straight cylinder shape; the side wall of the furnace body is provided with a charging opening and a slag discharging opening; the charging opening is positioned at the bottom of the furnace body and is arranged opposite to the slag discharging opening; the arrangement position of the slag discharging opening is higher than that of the charging opening; and the vertical distance of the slag discharging opening to the charging opening is 1.2-2.2m. With the adoption of the device, production large scale is easily realized, static pressure and diffusion resistance in the furnace are reduced, the vibration strength of the furnace body is reduced; reverse backmixing of the gas is inhibited, the mass transfer and heat transfer rate are improved, the contact time and contact surface of carbide slag and chlorine are ensured, the transformation rate of TiC is improved; and the device is beneficial to continuous operation of a chlorination furnace and is convenient in manufacturing, transformation and maintenance compared with the traditional chlorination furnace.

Description

technical field [0001] The invention relates to a chlorination process production equipment, more specifically, relates to a device for producing crude titanium tetrachloride by low-temperature boiling chlorination. Background technique [0002] Titanium tetrachloride is the raw material for the production of sponge titanium and the production of titanium dioxide by the oxidation method, and can also be used for the production of seed crystals for the production of titanium dioxide by the sulfuric acid method. At present, the process of extracting titanium tetrachloride using high-titanium carbonized blast furnace slag (hereinafter referred to as carbide slag) is mainly a boiling chlorination production process. In the boiling chlorination production process, the boiling chlorination furnace is the core equipment of this technology. [0003] The existing low temperature fluidized chlorination furnace comprises a furnace body, the upper part of the furnace body is provided wi...

AI Technical Summary

Problems solved by technology

[0004] However, due to the high density of solid materials such as carbide slag (2.0-2.2t / m 3 ) and less active ingredients, resulting in a higher bed in the furnace, because it leads to some shortcomings, such as excessive diffusion resistance, excessive local pressure, severe furnace vibration, uneven residence time distribution, and reduced driving force for reaction and transmission, etc. Wait

Images