Pressure Behaviors and Isothermal Kinetics of Magnesiothermic Reduction of Titanium Tetrachloride in a Semi-batch Reactor

Reaction mechanism involved in mostly general titanium metallurgy books and literature differs from some basics and is difficult to be understood for researchers and engineers. Although various authors have proposed different types of theories to recognize this reduction process, there is still no consensus on the reaction pathways and kinetic characteristics of magnesiothermic reduction of TiCl4 in the semi-batch reactor, and the theoretical innovations are required for further research of today's titanium sponge metallurgy. To develop a better understanding of the reduction mechanism of magnesiothermic reduction of TiCl4 in a semi-batch reactor, the present study defined a minimum set of independent reactions via generalized stoichiometry methodology, and proposed an innovative kinetic modeling approach via the net chemical reaction rate models of the main components and the reaction rate models of the independent reactions near the gas-liquid interfaces of magnesiothermic reduction of TiCl4. We also established the overall chemical reaction kinetics model of magnesiothermic reduction of TiCl4via the isothermal reduction experiment in a prototype 12 tons Kroll reactor.