MANUFACTURE PROCESS FOR TITANIUM DIOXIDE MATERIALS WITH HIGH SURFACE AREAS AND HIGH THERMAL STABILITY

摘要

The present invention relates to a process for the preparation of particles comprising at least one transition metal oxide and silicon dioxide, comprising at least the following steps: (A) Contacting at least one precursor of the at least one transition metal oxide and at least one non-ionic surfactant comprising silicon in at least one non-aqueous organic solvent, to obtain a reaction mixture and (B) Drying the reaction mixture obtained in step (A) to obtain particles comprising the at least one transition metal oxide and silicon dioxide. (C) Calcination of the particles obtained from step (B) of the process according to the present invention at a temperature of 200 to 800°C in an oxygen comprising atmosphere. The preferred transition metal oxide is titanium dioxide.