Pó de óxido misto de silício-titânio, dispersão do mesmo e zeólito que contém titânio preparado a partir do mesmo

摘要

Pyrogenic silicon-titanium mixed oxide powder having•a BET surface area of 200 to 400 m2/g,•a DBP number/BET surface area ratio of 0.5 to 1.2,•a silicon dioxide content of 93.5 to 95.4% by weight and a titanium dioxide content of 4.6 to 6.5% by weight, where the sum of the contents is greater than 99.7% by weight. Dispersion comprising the pyrogenic silicon-titanium mixed oxide powder. Process for preparing a titanium-containing zeolite proceeding from powder or dispersion.