METHOD OF REFINING TITANIUM TETRACHLORIDE AND REFINER USED FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a method of refining titanium tetrachloride, which effectively avoids precipitation of high-boiling components in a fractionating column and enables easy maintenance, and a refiner used for the same.;SOLUTION: In the method of refining titanium tetrachloride using the fractionating column, crude titanium tetrachloride is distilled by a distillation still, the obtained distillate rich in titanium tetrachloride is fed to and distilled in a simplified fractionating column connected downstream of the distillation still, and the distillate rich in titanium tetrachloride obtained in the simplified fractionating column is fed to and further distilled in a main fractionating column connected downstream of the simplified fractionating column. The titanium tetrachloride refiner is equipped with the distillation still for distilling the crude titanium tetrachloride, the simplified fractionating column connected downstream of the distillation still and the main fractionating column connected downstream of the simplified fractionating column.;COPYRIGHT: (C)2008,JPO&INPIT