Vanadium-containing mud slurry treatment method

A mud and chlorination furnace technology, applied in the direction of titanium tetrachloride, titanium halide, etc., can solve the problems of increasing operating costs, hindering production, and not being able to completely separate titanium tetrachloride and vanadium-containing mud, and achieve full High recovery and separation efficiency

Inactive Publication Date: 2017-06-16
YUNNAN METALLURGICAL XINLI TITANIUM IND CO LTD
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Problems solved by technology

[0002] The production process of rutile titanium dioxide by boiling chlorination mainly includes chlorination, condensation of crude titanium tetrachloride, refining of crude titanium tetrachloride, oxidation, and post-treatment of base materials. Crude titanium tetrachloride is continuously processed with mineral oil. During the vanadium removal process, 7-10 tons of vanadium-containing mud with a solid content of about 15wt% must be discharged every hour to ensure continuous and stable operation of the process. If there is no mature technology to d

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  • Vanadium-containing mud slurry treatment method
  • Vanadium-containing mud slurry treatment method

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[0025] In one aspect of the invention, the invention provides a method for treating vanadium-containing mud. According to an embodiment of the present invention, the vanadium-containing mud contains titanium tetrachloride. According to a specific embodiment of the present invention, the method includes: (1) supplying vanadium-containing mud from the top of the chlorination furnace into the chlorination furnace, so that the vanadium-containing mud and the heat generated in the chlorination furnace The flue gas is contacted to obtain a mixed gas containing gaseous titanium tetrachloride and vanadium-containing solids; (2) the gas-solid separation process is carried out in a dust collector for the mixed gas containing gaseous titanium tetrachloride and vanadium-containing solids, so that Titanium tetrachloride and vanadium-containing solids were obtained respectively. The inventors have found that by supplying the vanadium-containing mud into the chlorination furnace, the vanadi...

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Abstract

The present invention discloses a vanadium-containing mud slurry treatment method, wherein the vanadium-containing mud slurry contains titanium tetrachloride. The vanadium-containing mud slurry treatment method comprises: (1) supplying a vanadium-containing mud slurry into a chlorination furnace from the top portion of the chlorination furnace to make the vanadium-containing mud slurry contact the hot flue gas generated in the chlorination furnace to obtain mixing gas containing gas-state titanium tetrachloride and a vanadium-containing solid; and (2) carrying out gas-solid separation treatment on the mixing gas containing the gas-state titanium tetrachloride and the vanadium-containing solid in a dust collector so as to respectively obtain the titanium tetrachloride and the vanadium-containing solid. With the vanadium-containing mud slurry treatment method of the present invention, the continuous treatment on the vanadium-containing mud slurry can be achieved, and the separation efficiency of the titanium tetrachloride and the vanadium-containing solid in the vanadium-containing mud slurry is high so as to completely recover the titanium tetrachloride.

Description

technical field [0001] The invention belongs to the technical field of producing titanium dioxide by chlorination, in particular, the invention relates to a method for treating vanadium-containing mud. Background technique [0002] The production process of rutile titanium dioxide by boiling chlorination mainly includes chlorination, condensation of crude titanium tetrachloride, refining of crude titanium tetrachloride, oxidation, and post-treatment of base materials. Crude titanium tetrachloride is continuously processed with mineral oil. During the vanadium removal process, 7-10 tons of vanadium-containing mud with a solid content of about 15wt% must be discharged every hour to ensure continuous and stable operation of the process. If there is no mature technology to deal with the discharged mud in time, it will seriously hinder production. For the existing mud evaporation process, the treatment of mud not only requires new processing equipment, but also needs to provide a...

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Application Information

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IPC IPC(8): C01G23/02
CPCC01G23/024
Inventor 刘建良钱春花杨易邦申利李保金邹正伟陈卫张入文
Owner YUNNAN METALLURGICAL XINLI TITANIUM IND CO LTD
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