The present invention relates to processes for preparing
propylene oxide, comprising reaction of
propene with
ethylbenzene hydroperoxide in the presence of a catalyst, as well as to catalysts employed in such processes and to methods for their manufacture. The catalysts of the invention are prepared in a process comprising
sol-gel-synthesis of catalyst hydrogel-precursor,
drying of catalyst hydrogel precursor, calcining of dried catalyst hydrogel-precursor, and optionally hydrophobizing the calcined catalyst hydrogel-precursor. The catalysts of the invention comprise amorphous
titanium doped silica comprising pentahedrally coordinated
titanium species.