Method of continuously preparing artificial rutile and dedicated device thereof

A technology of artificial rutile and special equipment, which is applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems that conventional reactors cannot realize continuous large-scale production, and is suitable for large-scale production, overcomes high energy consumption, and solves the problem of The effect of particle shrinkage problems

Active Publication Date: 2017-02-22
于京辉 +2
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for continuous preparation of artificial rutile and its special equipment, which solves the problem that conventional reactors cannot realize continuous large-scale production, and avoids the above-mentioned problems of continuous U-shaped pipe-type acid leaching reactors. Technical problems, further effectively avoiding the mutual friction between solid particles, avoiding the quality difference between batches caused by batch production, and improving the stability of product quality

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  • Method of continuously preparing artificial rutile and dedicated device thereof

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Embodiment Construction

[0023] The following is attached figure 1 Embodiments of the present invention are further described in detail. The present invention is a method for continuously preparing artificial rutile, such as figure 1 As shown, the method can be implemented using the following special equipment, that is, a special equipment for continuous preparation of artificial rutile. The main body of the special equipment is a vertical hydrochloric acid-resistant fluidized bed reactor 13, which is set at a high position outside the reactor. There is a mixing bin 4. The height of the mixing bin is close to the top of the reactor. The upper part of the mixing bin is provided with a hydrochloric acid inlet 3 and a material inlet 2 of the mixing bin. The hydrochloric acid inlet and the material inlet of the mixing bin are arranged oppositely. The inlet can adopt an included angle of 100 degrees to 175 degrees, so that the added acid liquid and granular materials form a mixed slurry material, and a ma...

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Abstract

The invention provides a method of continuously preparing artificial rutile and a dedicated device thereof. The method and the dedicated device thereof solve the problems that a conventional reactor can not achieve continuous and mass productions and has high energy consumptions. According to the technical scheme, the method comprises the steps of adding hydrochloric acid and materials into an elevatus mingled storehouse, and conducting mixing on the hydrochloric acid and the materials; making the mixture flow into a reactor along a feed pipe; injecting the heated hydrochloric acid to the reactor from the bottom of the reactor to be subjected to upward flow, conducting acid leaching reaction on the heated hydrochloric acid with a pasty material, using a U-shaped heating tube to conduct heating on the reaction solution, and sending the reaction solution to a negative pressure type liquid-solid separator when the reaction solution reaches the height of a discharge gate; emitting gas generated by the reaction solution to a gas/liquid collector. On the premises of improving the safety, protecting the environment, improving efficiency and stability of quality, the whole system achieves continuous leaching, is applicable to mass production, and has low energy consumption.

Description

technical field [0001] The invention relates to the field of chemical material manufacturing, in particular to a method for continuously preparing artificial rutile and special equipment thereof, which are used to manufacture high-grade artificial rutile. Background technique [0002] High-grade artificial rutile is one of the main raw materials for the production of chlorinated titanium dioxide and sponge titanium. In the global annual production of about 5.5 million tons of titanium dioxide, the chlorinated process accounts for about 55%-60% of the market. Both the production of titanium dioxide by the chloride method and the production of sponge titanium require the use of purified titanium with a high percentage of titanium dioxide as raw materials, including natural rutile, artificial rutile and high-titanium slag. In the production of artificial rutile, the problem of realizing continuous production under the premise of ensuring that the particles of ilmenite do not sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/047
CPCC01G23/047
Inventor 于京辉
Owner 于京辉
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