The present invention relates to a catalytic continuous process for producing methyl methacrylate, said process comprising the step of reacting methacrolein with oxygen and methanol in the presence of a heterogeneous noble-metal-containing catalyst in an oxidative esterification reaction to give methyl methacrylate, characterized in that the stationary concentration of the starting material methacrolein is equal to or less than 12 % by weight based on the total weight of the reaction mixture in the reactor, and the ratio F between the total liquid volume within the reactor expressed in litres divided by the total weight of catalyst in the reactor expressed in kilograms is equal to or less than 4.
申请公布号
WO2015091173(A1)
申请公布日期
2015.06.25
申请号
WO2014EP77302
申请日期
2014.12.11
申请人
EVONIK INDUSTRIES AG;KRILL, STEFFEN;LYGIN, ALEXANDER;GRÖMPING, MATTHIAS;BALDUF, TORSTEN;BURGHARDT, RUDOLF
发明人
KRILL, STEFFEN;LYGIN, ALEXANDER;GRÖMPING, MATTHIAS;BALDUF, TORSTEN;BURGHARDT, RUDOLF