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

1977-03-23

1978-04-11

Stern, Edward

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423610, 423612, 55 71, C01G 2304

Patent

active

040839460

ABSTRACT:
A process for removing chloride impurities from TiO.sub.2 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 psi, and a temperature of about 140.degree.-650.degree. C., into the TiO.sub.2 to disperse it, and then separating the TiO.sub.2 from the gas and chlorides.

REFERENCES:
patent: 3253889 (1966-05-01), Wildt et al.

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