A new highly efficient method for the synthesis of rutile TiO₂

A new highly efficient method has been developed for the synthesis of the synthesis of rutile TiO₂ from titania slag. High quality of rutile TiO₂ were obtained by carrying out the synthesis in conventional heating method. The thermal stability, crystal structures and molecular structures of rutile TiO₂ and titania slag before and after treatment were characterized using TG/DTA, XRD and Raman, respectively. The results of TG/DTG showed roasting temperature range of 850-1000 C was used in the further research work in order to transform from anatase TiO₂ to rutile TiO₂. The XRD results demonstrate that a rutile TiO₂ with high crystallinity was prepared. With increasing roasting temperature, the intensity of Raman vibrations bands of anatase TiO₂ decrease, and the intensity of Raman vibrations bands of rutile TiO₂ increase. Based on the mention results, this method can be applied effectively and efficiently way for both titania slag utilization and rutile TiO₂ preparation.