Process for removing chloride impurities from tio.sub.2

Details Process for removing chloride impurities from tio.sub.2 Process for removing chloride impurities from tio.sub.2

C - Chemistry, Metallurgy

01

G

23/255, 183/5

C01G 23/047 (2006.01) C01G 23/07 (2006.01)

Patent

CA 1093790

ABSTRACT A process for removing chloride impurities from TiO2 by injecting a gas selected from steam, air, nitrogen, or a mixture thereof, at a sonic or a supersonic velocity, a pressure of about 25-600 pai, and a temperature of about 140-650°C., into the TiO2 to disperse it, and then separat- ing the TiO2 from the gas and chlorides.

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