论文部分内容阅读
对Co2+-NaX催化苯乙烯氧气氧化进行实验研究,采用气相色谱-质谱联用确定其产物的组成。分别以不同产物为原料在该条件下进行催化氧化实验,确定了苯乙烯氧化平行-连串反应网络,即在该体系下苯乙烯氧化主要发生两类平行反应,一反应是苯乙烯环氧化为环氧苯乙烷;另一反应是苯乙烯氧化裂解生成苯甲醛和甲醛,苯甲醛能够部分氧化生成苯甲酸,而大部分甲醛则被深度氧化为CO2和H2O。并对苯乙烯氧气氧化反应机理进行探讨。
The catalytic oxidation of styrene with oxygen over Co2 + -NaX was investigated by gas chromatography-mass spectrometry (GC-MS). Respectively, different products as raw materials under the conditions of catalytic oxidation experiments to determine the parallel oxidation of styrene oxidation - a series of reaction networks, that styrene styrene oxidation occurs mainly two types of parallel reactions, one is the reaction of styrene epoxidation Is styrene oxide; another reaction is the oxidation of styrene to produce benzaldehyde and formaldehyde, benzaldehyde can be partially oxidized to form benzoic acid, while most of the formaldehyde is deeply oxidized to CO2 and H2O. And oxidation mechanism of styrene oxidation was discussed.