| 摘要 |
<p>The production of 1,2-dichloroethane from ethylene, hydrogen chloride and oxygen or an oxygen-containing gas (oxi-chlorination) is done advantageously in a reactor with a lower boundary for a catalyst-fluidised bed, a first gas inlet duct (distributor pipes) (4) being provided above the boundary within the catalyst-fluid bed. The first gas inlet duct is provided with nozzles (5) distributed over the entire cross-section of the reactor; these nozzles open out into pipes (6) which conduct the emerging gas stream in a direction essentially opposed to that of the gas stream which fluidises the catalyst after entering via a second gas inlet duct (7) below the boundary.</p> |
