IMPROVED VAPOR OXIDATION PROCESS FOR TITANIUM TETRACHLORIDE IN TITANIUM DIOXIDE

摘要

In the conventional process for production of TiO2 by oxidation of TiCl4 in the vapour phase a reduction in reaction initiation temperature, the avoidance of excessive reactor temperatures, a uniform reactor temperature profile and savings in energy are achieved by introducing at least 1% (but not all) of the titanium tetrachloride into a first reactor zone and adding the remainder to at least one further zone.