METHOD FOR POST-TREATING TITANIUM DIOXIDE PIGMENTS, PIGMENTS BASED ON TITANOUM DIOXIDE AND USE THEREOF

摘要

The invention relates to a method for the post-treatment of titanium dioxide for the production of particularly weather-rasistant titanium dioxide pigments with good optical properties. The method is characterised in that in addition to the water-containing oxides of tin and zirconium, at least one further oxide of the group aluminium, silicon and titanium is co-precipitated on the particle surface with pH value adjusting.