| 摘要 |
<p>AN IMPROVED PROCESS FOR THE MANUFACTURE OF ETHYLENE OXIDE THROUGH THE EPOXIDATION OF ETHYLENE USING A CATALYST COMPRISING SILVER AND AT LEAST ONE EFFICIENCY-ENHANCING SALT OF A MEMBER OF A REDOX-HALF REACTION PAIR. ADDED TO THE EPOXIDATION REACTION IS A TWO-COMPONENT GAS-PHASE PROMOTER SYSTEM COMPRISING A CHLORINE-CONTAINING COMPONENT (FOR EXAMPLE ETHYL CHLORIDE, METHYL CHLORIDE, VINYL CHLORIDE AND ETHYLENE DICHLORIDE), AND A NITROGEN-CONTAINING COMPONENT OF NITRIC OXIDE AND OTHER COMPOUNDS CAPABLE OF GENERATING UNDER REACTION CONDITIONS AT LEAST ONE GASEOUS EFFICIENCY-ENHANCING MEMBER OF A REDOX-HALF REACTION PAIR COMPRISING NO, NO2, N2O3 OR N2O4. THE AMOUNT OF EACH COMPONENT OF SAID GASEOUS PROMOTER IS ADJUSTED TO MAINTAIN THE RATIO OF N* TO Z* LESS THAN OR EQUAL TO 1 WHEREIN,</p> |
