Model on Titanium Tetrachloride Gas Phase Oxidation Process

Abstract

Titanium tetrachloride (TiCl4) oxidation is the most important stage in the titanium dioxide production. High temperature, fast reaction and strong oxidation and strong corrosive atmosphere have increased a lot of difficulty to measuring and testing in oxidation reactor. Computational fluid dynamics (CFD) simulation is one of the most valid methods to investigate TiCl4 gas phase oxidation. In this paper, the achievements and progress about fluid dynamics simulations of titanium tetrachloride gas phase oxidation are described. The further research directions and new perspectives in this field are presented.

Fluoride Leaching of Titanium from Ti-Bearing Electric Furnace Slag in [NH4+]-[F−] Solution

“…The chlorination temperature of TiO 2 reaches 900-1000 • C, and the oxidation temperature of TiCl 4 reaches 1800-2000 • C. A large number of toxic and harmful, flammable, and explosive media, such as Cl 2 , TiCl 4 , and CO, participate in the high temperature reaction, which is not conducive to safe production [19]. The chlorination process can only produce rutile titanium dioxide, which belongs to high-end titanium dioxide product [20]. The hazardous wastes, including CaCl 2 , MgCl 2 , unreacted titanium-rich feedstocks, and petroleum coke, cannot be recycled except for by deep burial.…”