The chlorination of synthetic rutile with CCl4 for the low temperature production of TiCl4 was studied in both packed bed and fluidized bed reactors.Synthetic rutile samples before and after chlorination were characterized with SEM

XRD and XPS.Synthetic rutile produced by the Zigong process can be rapidly chlorinated by CCl4 at 450℃ to 500℃.The presence of Fe3+ ions in the lattice of the rutile phase was the key reason for the high reactivity.It was also found that an inert rutile shell was formed during the mild pre-oxidation used in the manufacturing process of the synthetic rutile material.This limited the maximum TiCl4 yield in the chlorination process to 90%.However

this inert rutile shell structure maintained the particle size during the chlorination process

it was also beneficial because it allowed the chlorination of the synthetic rutile material in a fluidized bed reactor.This process of using CCl4 for the chlorination of rutile is potentially valuable as an environmental protection technology.It effectively converts the undesirable ozone destructive substance (ODS) CCl4

an industrial byproduct

into a non-ODS product.