Problems and measures in MMA esterification process by acetone cyanoalcohol method
Methyl methacrylate(MMA),an important organic chemical raw material,is used widely.Acetone cyanoalcohol process is the one of the main production routes all over the world.However,the pipelines of esterification process were often clogged which increased the polymer in the esterification reactor that caused the failure of discharging material and even caused plant shutdown.Generally,30～60 d esterification reactor or pipelines needed to be shutdown for a short time,which greatly affected the stability and economy of the plant operation.Based on the esterification reaction mechanism and production process,it systematically analyzed the problems in the esterification process,and put forward the solutions and suggestions in combination with the production practice,so as to realize the long-term stable production of the MMA plant.
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