Indexed on: 01 Dec '89Published on: 01 Dec '89Published in: Metallurgical and Materials Transactions B
A model has been developed for fluidized bed chlorination of rutile in the presence of coke to produce titanium tetrachloride. At various reaction conditions, the model can predict the conversion of chlorine, particle size distribution in the bed, composition of the product gas, and reaction temperature. The bubble assemblage model is used to calculate the reactant gas mass transfer rate from the bubble phase to the emulsion phase. The population balance is employed to determine the size distribution of particles in the bed. The reaction in the freeboard zone is neglected. The model predictions have been compared with the results from a pilot-scale experiment, and the model gives good agreement between computed and experimental results. The effects of various reaction parameters on the reaction rate are discussed using the model.