Expansion section as the inlet to the flue in a titanium dioxide

Details Expansion section as the inlet to the flue in a titanium dioxide Expansion section as the inlet to the flue in a titanium dioxide

1994-12-06

1996-07-23

Bos, Steven

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423614, C01G 23047

Patent

active

055387080

ABSTRACT:
In the process for producing titanium dioxide by (a) reacting titanium tetrachloride and oxygen in the vapor phase in a reactor to produce titanium dioxide, and (b) subsequently cooling the titanium dioxide by passing it through a flue consisting of a conventional flue, a finned flue, or combinations thereof, wherein the outlet for the reactor in step (a) has a smaller interior diameter than the inlet for the flue in step (b),
the improvement comprising passing the titanium dioxide through a truncated cone-shaped finned flue conduit, the smaller diameter end of the truncated cone-shaped finned flue conduit receiving titanium dioxide produced by the reactor and the larger diameter end of the truncated cone-shaped finned flue conduit discharging titanium dioxide that is received by the flue.

REFERENCES:
patent: 3403001 (1968-09-01), Mas et al.
patent: 4462979 (1984-07-01), Stevens et al.
patent: 4569387 (1986-02-01), Hartmann et al.
patent: 4803056 (1989-02-01), Morris et al.
patent: 4937064 (1990-06-01), Gonzalez

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