| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to chemical industry and catalyst systems which can be used particularly in processes for oxidation of hydrogen chloride to molecular chlorine, oxychlorination of methane, partial oxidation of (C1-C4) lower paraffins to alcohols and aldehydes (oxygenates). The invention can also be used in processes for producing valuable chemical products and semi-products, as well as when processing different gaseous and liquid wastes. Described is a catalyst system for heterogeneous reactions, which is a geometrically structured system containing microfibre of a high-silica carrier with diameter of 5-20 mcm, which is characterised by presence of hydroxyl group absorption bands in the infrared spectrum with wave number =3620-3650 cm-1 and half-width 65-75 cm-1, has specific surface area measured using a BET method based on thermal desorption of argon, SAr=0.5-30 m2/g, has surface area measured using an alkaline titration method SNa=5-150 m2/g with ratio SNa/SAr=5-50, and at least one active element, characterised by that the active element is made either in form of a MezOxHaly composite or in form of a NwMezOxHaly composite, where element N in the composite NwMezOxHaly is selected from a group comprising alkali, alkali-earth elements or hydrogen, element Me in composite NwMezOxHaly and composite MezOxHaly is selected from a group containing iron, cobalt, nickel, ruthenium, rhodium, vanadium, chromium, manganese, zinc, copper, silver, gold, or one element from lanthanum and lanthanides, and element Hal in composite NwMezOxHaly and composite MezOxHaly is one of halogens: fluorine, chlorine, bromine and iodine. ^ EFFECT: higher activity of the catalyst system and high resistance to deactivation in aggressive media in oxidation, chlorination and oxychlorination reactions. ^ 3 cl, 3 ex |
