PROCESS FOR PREPARING TITANIUM TETRACHLORIDE USING OFF GASES FROM A SILICA AND ZIRCON CARBO-CHLORINATION PROCESS

摘要

This disclosure relates to an improved process for preparing titanium tetrachloride comprising a first carbo-chlorination reaction comprising reacting ores comprising silica and/or zirconium with chlorine and a carbon compound at a temperature of about 900° C. to about 1300° C. to form an unscrubbed off gas comprising carbon monoxide, and using the unscrubbed off gas in a second carbo-chlorination reaction comprising titanium to form titanium tetrachloride.

主权项

1. A process for preparing titanium tetrachloride comprising:
(a) reacting ore comprising an oxide with a chlorine and a carbon compound at a temperature of about 900° C. to about 1300° C. to form the corresponding chloride and off gas comprising carbon monoxide, wherein the off gas is unscrubbed, and wherein the oxide is selected from the group consisting of silica, zircon and mixtures thereof, and wherein the carbon compound is selected from the group consisting of coke, charcoal, silicon carbide and mixtures thereof; and (b) reacting titanium dioxide with the unscrubbed off gas formed in step (a) under conditions effective for forming titanium tetrachloride and carbon dioxide.