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1 ,2丙二醇气相氧化制丙酮醛是较有竞争力的生产方法 ,该文介绍了其生产工艺的组织 ,据此建立的装置一直在顺利运转.“,”The oxidation of 1.2-propanediol with the low-oxygen concentration gas is a competitive method preparing methylglyoxal.The principle process of methylglyoxal is introduced.A plant based on the process was set up and has been operated smoothly.