Catalytic oxidation of ethylene on magnesium chromite

Summary

• 1. A study has been made of the oxidation reaction of ethylene at a magnesium-chrome catalysts with an addition of sodium silicate under static conditions under a pressure of up to 2 mm Hg.

• 2. It is shown that the activity of the catalyst varies owing to the simultaneous occurrence of two processes — oxidation and sorption of a component.

• 3. The activity of the catalyst is restored by treatment of the surface with oxygen.

• 4. Under dynamic conditions with a great excess of oxygen, the surface is continuously regenerated, and the activity of the catalyst remains unaltered over a long period.

• 5. In the oxidation of ethylene under static conditions at catalyste with additives, the characteristic peculierities of the modification phenomenon, which we observed in our earlier dynamic experiments, were observed again.