Supported multi-metal catalyst was prepared by impregnation.A variety of factors such as reaction temperature

feedstock ratio

alkali concentration

catalyst concentration and antipolymerizer concentration were systematically investigated in terms of their effects on the oxidative esterification reaction for methyl methacrylate production from methacrolein.The experimental results showed that under the condition of temperature 333 K，methanol/methacrolein ratio 97∶1(molar ratio)，NaOH concentration 0.001 g8226;ml-1 and catalyst concentration 0.02 g8226;ml-1

methacrolein conversion and methyl methacrylate selectivity were about 100% and 71.4% respectively

after 30 min reaction.