System for increasing the capacity of a titanium dioxide produci

Details System for increasing the capacity of a titanium dioxide produci System for increasing the capacity of a titanium dioxide produci

1985-07-31

1989-02-07

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

422158, 423613, C01G 23047, B01J 1202

Patent

active

048030562

ABSTRACT:
A system for increasing the capacity of a process for producing titanium dioxide by reacting titanium tetrachloride vapors with oxygen wherein the process includes an oxygen preheat assembly for preheating oxygen to a predetermined temperature level and a first titanium tetrachloride preheat assembly for preheating titanium tetrachloride to a first, relatively high, temperature level, a portion of the oxygen and the titanium tetrachloride vapors at the first temperature level being reacted in a first reaction zone to produce a mixture of titanium dioxide reaction product, oxygen and unreacted titanium tetrachloride vapors at the first temperature level. The system comprises adding a second titanium tetrachloride preheat assembly for preheating titanium tetrachloride to a second temperature level, substantially below the first temperature level, and adding a second reaction zone adapted for receiving the mixture from the first reaction zone, the titanium tetrachloride vapors at the first temperature level in said mixture and the titanium tetrachloride vapors at the second temperature level being reacted with the oxygen in the mixture from the first reaction zone to produce titanium dioxide. The present invention also contemplates an improved reactor for use in the system for increasing the capacity of the titanium dioxide producing process.

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