Preparation equipment for cosmetic titanium dioxide

Abstract

The invention relates to the technical field of titanium dioxide preparation, in particular to preparation equipment for cosmetic titanium dioxide, which comprises a reaction kettle, an air inlet valve fixedly communicated with the bottom end of the side wall of the reaction kettle, and a gas separation device mounted between a blanking barrel and a second air outlet pipe; the solid separation device is mounted between the top of the reaction kettle and the second gas outlet pipe; and the stirring mechanism is mounted in the reaction bin. According to the device, through the arrangement of the gas separation device, titanium dioxide powder directly falls into the reaction bin along the blanking barrel in the filtering treatment process, and the situation that the amount of the titanium dioxide powder contained in chlorine is increased due to the fact that the titanium dioxide powder falling downwards is mixed with flowing chlorine again is avoided; therefore, the filtering burden increase caused by the increase of the titanium dioxide content in the chlorine is avoided, and the loss rate of the titanium dioxide is reduced.

Description

technical field [0001] The invention relates to the field of titanium dioxide preparation, in particular to a preparation equipment for cosmetic titanium dioxide. Background technique [0002] As a common industrial raw material, titanium dioxide can reflect and scatter ultraviolet rays, has stable chemical properties, is non-toxic, has high whiteness, strong covering power, and has good skin adhesion, so it is widely used in the production of cosmetics. Titanium dioxide for cosmetics is often prepared by reacting titanium chloride vapor, vanadium chloride vapor and oxygen at a high temperature of 1500°C or higher to obtain titanium dioxide fine particles chlorine gas containing vanadium oxide. [0003] The prior art discloses some invention patents for the preparation of titanium dioxide, and the Chinese patent application number CN202010249824.8 discloses a cosmetic raw material preparation device. The technical problem to be solved by the present invention is to provide ...

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Problems solved by technology

[0004] When preparing titanium dioxide in the prior art, chlorine gas will be generated during the reaction process, and the chlorine gas will be mixed with the titanium dioxide powder produced by the reaction. In the process of separating the chlorine gas, the chlorine gas will take away part of the titanium dioxide and cause waste of raw materials. When chlorine gas and titanium dioxide are separated, the filtered titanium dioxide powder falls and encounters rising chlorine gas, which will cause the chlorine gas to re-carry titanium dioxide to float, thereby increasing the filtration burden, and making part of the titanium dioxide always float under the chlorine gas, which is not conducive to the separation of titanium dioxide and chlorine gas

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