CATALYST AND METHOD OF PRODUCING ALKYLENE OXIDE

摘要

PROBLEM TO BE SOLVED: To provide a catalyst for producing alkylene oxide, the service life of which can be improved.SOLUTION: A catalyst for producing alkylene oxide contains a carrier and a catalyst component to be deposited on the carrier. The carrier contains α-alumina as a main component and has: the external surface coated with amorphous silica; and pores each having the surface coated with the amorphous silica. The coating amount of the amorphous silica (in terms of Si) is 2×10to 2×10g-Si/g-carrier and pores each having 50 μm or larger pore diameter account for 15-40% of the total pore volume.