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四、在中性和酸性介质中连续化过程 通过连续加入含有反应混合物与催化床的反应已实现〔方程(2)〕。根据不同的反应,催化剂可以改变,但在任何情况下,它都是负载在多孔的固体上的。有时,还需要有助催化剂,如在酸或碱性介质中进行的反应。通过反应平衡所形成的产物分配,其中一个可以完全地转化成产物。第一类例子是:在卤代烷中的卤素交换以及酯交换反应。第二种类型是有关异构化的反应,伯醇与盐酸反应(得到伯烷基卤)以及常见的二烷基碳酸酯的反应。
Fourth, the continuous process in neutral and acidic media has been achieved by continuously adding the reaction mixture containing the reaction bed and the catalytic bed [equation (2)]. Depending on the reaction, the catalyst can be changed but in any case it is supported on a porous solid. Sometimes it is also necessary to have a promoter, such as a reaction in an acid or alkaline medium. The product distribution formed by the reaction equilibrium, one of which can be completely converted to product. The first examples are: halogen exchange in alkyl halides and transesterification. The second type is related to isomerization reactions, the reaction of primary alcohols with hydrochloric acid (to give primary alkyl halides) and the common dialkyl carbonates.