Liquid phase dust collection method of titanic chloride solid dust collection

Abstract

The invention provides a liquid phase dust collection method of solid dust collection slag of titanium tetrachloride. Titanium tetrachloride gas which contains ferric trichloride, ferrous chloride, aluminium trichloride and carbon particulates from furnace gas temperature control and dust collection processes enters a liquid phase dust collector from a lateral surface on the upper side of a dust collection tower, is mixed with liquid titanium tetrachloride sprayed down and then cooled and washed; ferric trichloride, ferrous chloride, aluminium trichloride and carbon particulates enter a titanium tetrachloride mud circulation tank together with liquid titanium tetrachloride, titanium tetrachloride gas without particulates after purification enters a leaching process from the upper side of another dust collection tower, and titanium tetrachloride containing particulates in the titanium tetrachloride mud circulation tank is transported to a heat interchanger through an submerged sludge pump and cooled, afterward, a part of the titanium tetrachloride enters a liquid phase dust collector for leaching and cooling, while the other part of the titanium tetrachloride returns to the temperature control and dust collection processes, where the temperature of furnace gas produced by chlorination is controlled, solid dust collector is controlled for collecting dust, and particulates back into the titanium tetrachloride is removed. The method has the advantages of saving energy and improving yield coefficient of titanium tetrachloride.

Description

technical field [0001] The invention belongs to the production technology of titanium tetrachloride, and in particular relates to a treatment method for solid dust collection slag produced in the production process of titanium tetrachloride. Background technique: [0002] The chlorinated dust collection slag produced by the production of titanium tetrachloride is collected by the solid dust collector, and the impurity dust particles such as iron trichloride, ferric chloride, aluminum trichloride, carbon, etc. The dust collector collects and discharges, but the impurity dust particles with small particle size cannot be completely collected by the solid dust collector. The impurity particles that have not been collected enter the next process together with the gas titanium tetrachloride and other process gases. If the dusty titanium tetrachloride is rinsed, condensed, and liquefied, ferric chloride, ferric chloride, Aluminum, carbon and other impurity dust particles will ente...

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