Preparation method of inorganic and organic coated rutile titanium dioxide

Abstract

Belonging to the technical field of materials, the invention discloses a preparation method of inorganic and organic coated rutile titanium dioxide. The preparation system includes: a temperature detection module, a timing module, an operation module, a central control module, a raw material weighing module, a grinding module, a calcination module, a crushing module and a coating module. The composite titanium dioxide prepared by the method provided by the invention simplifies the production process and saves production cost, and moreover, the composite titanium dioxide has uniform particle size distribution and superior performance. According to the invention, the coating module adopts orthosiliconic acid as the silicon source, employs low alkalinity sodium metaaluminate, or employs low alkalinity sodium metaaluminate and aluminum sulfate as the aluminum coating raw materials for compact silicon-aluminum coating of titanium dioxide, thus providing a new way for coating of titanium dioxide. The method provided by the invention has the characteristics of simple operation, low production process labor intensity and low cost, and is worth popularizing and applying.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a preparation method of rutile-type titanium dioxide coated with inorganic and organic coatings on the surface. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] Rutile is relatively pure titanium dioxide, which generally contains more than 95% titanium dioxide. It is an important mineral raw material for extracting titanium, but it has less reserves in the earth's crust. It has excellent properties such as high temperature resistance, low temperature resistance, corrosion resistance, high strength, and small specific gravity, and is widely used in military aviation, aerospace, navigation, machinery, chemical industry, seawater desalination, etc. Rutile itself is one of the necessary raw materials for high-grade welding electrodes, and it is also the best raw material for producing rutile tit...

AI Technical Summary

Problems solved by technology

[0007] The existing titanium dioxide production process is complicated and the performance is poor; at the same time, the existing titanium dioxide coating effect is poor and uneven

low level of intelligence

[0008] In the existing control technology, for large-scale systems, the abstract model has too many refinements during verification, and the bottleneck of model checking is the state explosion problem, so it is urgent to propose an effective and speed up abstract model verification method

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