松节油和松香催化深度加工合成系列精细化工产品（Ⅱ）β─蒎烯多相催化异构制月桂烯

Synthesis of Series Fine Chemicals from Rosin and Turpentine (Ⅱ)Preparation of Myrcene from the Heterogeneous Catalytic Isomerization of β-Pinene

在所研制的固体催化剂ＴＡ－４和ＭＡ－４催化剂作用下，β─蒎烯可以高选择地异构成月桂烯。推断月桂烯通过吸附形成基式过渡态而降低反应活化能，促进生成月桂烯，在４５０℃，通过优化催化反应的操作条件，在扩大试验中β─蒎烯的转化率均可达９８％以上，产物中月桂烯的含量可达８３％。

pinene can be isomerized to myrcene by the selected solid catalysts TA-4 and MA-4, It was proposed that the formatiom of radical transition statc through the adsorption of β-pinene can decrease the activation energy and improve the formation of myrcene. By the optimum catalytic operational condition at 450℃ ,the conversion of β-pinene in the scale-up reaction was always over 98%, the content of myrcene in the product could reach 83%.