| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a support, a method of preparing said support, a catalyst for epoxidation of olefins having said support and a method of oxidising ethylene to ethylene oxide. The invention describes a support for a catalyst used in epoxidation of olefins which has an inert heat-resistant solid substrate having a surface and several projections coming out of the surface which are detected at scanning frequencies in the interval from approximately 250 cycles/micrometre or more. Described is a method of making such a carrier involving processing the surface of the substrate in order to obtain several projections on the surface of the substrate. The invention describes a catalyst for epoxidation of olefins having the support described above and a catalytically effective amount of silver, and a method of oxidising ethylene to ethylene oxide using the said catalyst. ^ EFFECT: higher catalyst activity and stability. ^ 21 cl, 2 ex, 6 dwg |
