The invention relates to a method for separating titanium tetrachloride and the
hydrolyzed reaction products of titanium tetrachloride from the exhaust gases generated
during the chlorination of raw materials containing titanium by treating the exhaust
gases with a first aqueous hydrochloric-acid solution of titanium oxychloride,
where, in the first separation stage (2), small droplets of hydrochloric-acid
titanium oxychloride solution (3) are flowed with the exhaust gas flow,
and larger droplets of hydrochloric-acid titanium oxychloride solution are flowed
counter current to the exhaust to remove the smaller droplets and ensure that virtually
no droplets are carried to a second separation stage. In the second separation
stage, a second titanium oxychloride solution is injected into a second reactor
(9), the second solution having a lower titanium oxychloride concentration
than that injected in the first separation stage. The method results in a lower
pressure loss in the scrubber system, while retaining the same separation efficiency.