Mechanism of Powder Deposition on Cool Wall during the Process of \=Chemical Synthesis of TiO2 in Vapor Phase

Formation of wall scale in the reactor during the process of chemical synthesis TiO2 in vapor phase has been investigated. The method and mechanism about restraining producing powder anomaly glowing up to form hard wall scale by condensation with cool wall was presented. The morphology and structure of TiO2 powder, hot wall scale and cool wall scale by condensation were characterized by TEM, SEM, Optical microscopy and XRD, respectively.