C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
23/163
C01G 23/02 (2006.01) C22B 34/12 (2006.01)
Patent
CA 1043538
ABSTRACT OF THE DISCLOSURE In a process for producing titanium tetrachloride which comprises chlorinating a titaniferous material having a TiO2 content of at least 50% by weight with a chlorine-containing gas in the presence of an excess amount for reaction purposes of a solid carbonaceous reducing agent which comprises 10 to 40% by weight of makeup solid materials, the improvement characterized in that (1) the sectional area of the upper part of the reaction zone is 1.2 to 10 times as large as that of the lower part of the reaction zone, (2) said titaniferous material is in the form of fine particles at least 20% by weight of which passes through a 200 mesh Tyler standard sieve, (3) said solid raw materials consisting of said titaniferous material and said solid carbonaceous reducing agent are introduced into the reactor through feed-pipes provided at at least two places including each one place at the upper and lower parts of the reactor, and (4) said chlorine-containing gas is introduced as an upward flow with a maximum superficial linear velocity in the range from 1 to 10 m/sec, so that the reaction zone may be maintained in a dilute-phase fluidization system at a charge density in the range of 10 to 200 kg/m3 accompanied by the reflux of part of the solid raw material particles, the reaction zone temperature being in the range from 900° to 1400°C.
222889
Adachi Masaaki
Ichimura Kenichi
Shirai Takayoshi
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