Patent ID: 7910515
Filing Date: 2011-03-22
Classification: B01J

Abstract:
1. A silicon titanium mixed oxide powder comprising primary particles, wherein the powder has the following features: a BET surface area of 5 to 300 m a silica content, based on the total amount of the mixed oxide powder, of ≧0.1 to <0.5% by weight, a titanium dioxide content, based on the total amount of the mixed oxide powder, of ≧99.0% by weight, a sum of the proportions of silica and titanium dioxide, based on the total amount of the mixed oxide powder, of ≧99.5% by weight, the titanium dioxide content of the primary particles comprises intergrown rutile and anatase phases, and the silica content of the primary particles is amorphous, and the mixed oxide particles comprise a titania core and a silica coating.