| 摘要 |
PURPOSE:To simply and sufficiently regenerate a catalyst mainly composed of manganese used in an ozone deodorizing process and lowered its activity by calcining it in the air oxygen at 100-500 deg.C. CONSTITUTION:A catalyst mainly composed on manganese used in the ozone deodorizing process and lowered catalyst activity is calcined in the air or oxygen at 100-500 deg.C, more preferably at 200-450 deg.C and regenerated. In that case, calcining is carried out in a calcining oven for 1-5 hours. In case of simple deterioration of the activity such as simple water adsorption or the like is small, it is sufficient to regenerate by 100-150 deg.C drying. The treatment of chemical liquid can be eliminated and the process and a device can be simplified by regenerating by means of said process, and the generation treatment can be carried out simply. |
