Polytechnic University of Valencia Congress, 21st International Drying Symposium

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Synthesis of titanium dioxide precursor by the hydrolysis of titanium oxychloride solution
Pascal Le Bideau, Mireille Richard-Plouet, Patrick Glouannec, Anthony Magueresse, D. Iya-Sou, L. Brohan

Last modified: 02-01-2019

Abstract


This communication focuses on the development of an approach to improve the synthesis of [Ti8O12(H2O)24]Cl8.HCl.7H2O crystals which is one of the precursor for titanium dioxide TiO2 particles. This study provides a significant improvement in crystallization kinetics with a production rate increased by a factor nineteen by intensifying heat and mass transfers compared to the process in a close vessel. This enhancement was made possible by the development of a new reactor to control the heat and mass transfers involved. In parallel with the experimental set-up, a numerical model representative of the transfer phenomena was initiated. The first numerical results are encouraging and present a good agreement with the measurements.

Keywords: Heat and mass transfer; Co-desorption, Modelling, Experiment


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