| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to catalytic chemistry, specifically to catalysts for oxidation of hydrocarbons in an oxygen-containing gas and methods of preparing said catalysts. The invention describes a catalyst for oxidising hydrocarbons, which contains an active component - manganese oxide and a support in form of granular zirconium oxide with the following content of components, wt %: manganese oxide (MnO2) 5.0-20.0; zirconium oxide (ZrO2) 80.0-95.0. Described also is a catalyst which contains manganese oxide and a granular support made from powdered aluminium oxide in a mixture with crystalline mesoporous aluminium silicate with molar ratio Si/Al equal to 10-60:1, with the following ratio of components, wt %: manganese oxide (MnO2) 5.0-20.0; aluminium oxide (Al2O3) 40.0-85.0; crystalline mesoporous aluminium silicate (AlxSiyOz, where x=0.017-0.1, y=1, z=2.026-2.15) 10.0-40.0. The invention describes a method of preparing catalysts (versions) described above, involving preparation of a support - zirconium oxide or granular mixture of powdered aluminium oxide and crystalline mesoporous aluminium silicate and depositing onto the support manganese oxide, obtained through calcination at 500-600C of the support saturated with aqueous manganese hydroxide solution after drying in an a temperature interval from 60 to 110C. ^ EFFECT: higher catalytic activity and life of the catalyst. ^ 6 cl, 1 tbl, 6 ex |
