Fused salt chlorination furnace for producing titanium tetrachloride

Abstract

The invention discloses a fused salt chlorination furnace for producing titanium tetrachloride. A return slurry ore pipe, a feed pipe, an explosion-proof port and a product mixed steam discharge port are formed in the top of the fused salt chlorination furnace; a side salt discharge pipe, a plurality of chlorine pipes and a plurality of heating electrodes are arranged at a side part of the fused salt chlorination furnace; a bottom salt discharge pipe is arranged at the bottom of the fused salt chlorination furnace; the furnace wall of the fused salt chlorination furnace comprises three layers, wherein the outer layer is a metal furnace shell, the middle layer is a buffer packed layer and the inner layer is a fire brick layer; a circle of nozzle plugs are arranged on the outer walls of the chlorine pipes; a circle of electrode lug blocks are arranged on the outer surfaces of the heating electrodes. The fused salt chlorination furnace disclosed by the invention is simple in structure, can prevent gas leakage, and can regularly discharge waste salts and improve the chlorination environment to facilitate production of TiCl4.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and metallurgy, and more specifically relates to a molten salt chlorination furnace for producing titanium tetrachloride by a molten salt chlorination method. Background technique [0002] Now mainstream TiCl 4 The production method is the boiling chlorination method to produce TiCl 4 , but the boiling chlorination method produces TiCl 4 The grade requirements for titanium slag are extremely high, and the requirements for the particle size of titanium slag are relatively strict. The impurity components in titanium slag are required to be relatively low, especially the sum of CaO and MgO content is required to be less than 2%. Also, the boiling chlorination method produces TiCl 4 The temperature requirement is relatively high, and it needs to be above 900°C. The waste gas produced is mainly CO, and CO is a dangerous gas, which may cause an explosion. [0003] The molten salt chlorinat...

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Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, the object of the invention is to provide a molten salt chlorination furnace for producing titanium tetrachloride, to solve the problem of producing TiCl by molten salt chlorination. 4 problems in the process

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