A METHOD FOR PROTECTING THE ACTIVITY OF A MICROSPHERE CATALYST BY CONTROLLING THE CALCINATION CONDITION

摘要

A method for protecting the activity of a microsphere catalyst by controlling the calcination condition. A stable preserving microsphere catalyst can be obtained by inactivating the active center of the catalyst, wherein the calcination temperature, calcination time, calcination atmosphere should be controlled strictly. The stable preserving microsphere catalyst may be kept for a long time under room temperature, and can be activated in air or oxygen containing atmosphere before used in catalytic reaction. The catalyst obtained by the protection method has same activity for converting oxygen compound to olefine and selectivity as the fresh baked catalyst.