A method for continuous preparation of artificial rutile and its special equipment

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...

AI Technical Summary

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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