Synthesis of titanium dioxide precursor by the hydrolysis of titanium oxychloride solution
| Autor: | Anthony Magueresse, Patrick Glouannec, Pascal Le Bideau, Mireille Richard-Plouet, D. Iya-Sou, Luc Brohan |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Intensification
Materials science Energy Dehydration Evaporation Sublimation Heat and mass transfer chemistry.chemical_element Dewatering Modelling Environmental Diffusion Co-desorption chemistry.chemical_compound Hydrolysis Experiment chemistry Emerging technologies Titanium dioxide Process control Products quality Nuclear chemistry Titanium Drying |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| Popis: | [EN] 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. The authors acknowledge financial support from the French Agence Nationale de la Recherche (ANR) under reference ANR-12-EMMA-0023 (Nano-OxTi project). |
| Databáze: | OpenAIRE |
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