OXIDATION CATALYST FOR OLEFIN

摘要

PURPOSE:To obtain a catalyst having high selectivity, by mixing a solid soln. of lead molybdate-bismuth molybdate with bismuth molybdate. CONSTITUTION:A solid solution consisting of 95-75mol% of lead molybdate [PbMoO4] and 5-30mol% of bismuth molybdate [Bi2(MoO4)3] being a solid solution of lead molybdate [PbMoO4] and bismuth molybdate [Bi2(MoO4)3] each having a same crystal structure and bismuth molybdate [Bi2MoO6 and Bi2Mo2O9] having a crystal structure different from [Bi2(MoO4)] are mixed in a ratio of 10-90mol%:90-10mol%. In addition, these components are mixed with a small amount of water and the resulting mixture is dried at 80-200 deg.C and calcined at 400-800 deg.C.