COMPOSITION BASED ON ZIRCONIUM OXIDE, TITANIUM OXIDE OR MIXED ZIRCONIUM AND TITANIUM OXIDE, DEPOSITED ON SILICON OXIDE SUPPORT, METHODS OF PRODUCING SAID COMPOSITION AND USE THEREOF AS CATALYST

摘要

FIELD: chemistry.;SUBSTANCE: invention can be used in inorganic chemistry. The catalytic composition contains at least one oxide on a support, which is based on zirconium oxide, titanium oxide or a mixed zirconium and titanium oxide, deposited on a silicon oxide-based support. After firing at 900°C for 4 hours, the oxide on the support has the form of particles deposited on a support and size of said particles is not greater than 5 nm if the oxide on the support is based on zirconium oxide, not greater than 10 nm if the oxide on the support is based on titanium oxide and not greater than 8 nm if the oxide on the support is based on a mixed zirconium and titanium oxide. After firing at 1000°C for 4 hours, particle size is not greater than 7 nm if the oxide on the support is based on zirconium oxide, not greater than 19 nm if the oxide on the support is based on titanium oxide and not greater than 10 nm if the oxide on the support is based on a mixed zirconium and titanium oxide.;EFFECT: invention reduces aggregation of particles and sintering thereof at high temperature.;11 cl, 1 tbl, 9 ex