乙酰氯气固相催化氯化合成三氯乙酰氯  

Study on the Synthesis of Trichloroacetyl Chloride from Acetyl Chloride by Gas-solid Catalytic Chlorination

作　　者：黄军其[1] 王良芥[1] 罗和安[1] 

机构地区：[1]湘潭大学化工学院,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2006年第4期61-64,共4页Natural Science Journal of Xiangtan University

基　　金：国家自然科学基金资助项目(20176046)

摘　　要：甲基三乙酰氧基硅烷的合成过程中产生大量的副产物乙酰氯，该副产物由于含有三甲基一氯硅烷等杂质而用速大大减少，以乙酰氯和氯气为原料，用气固相催化氯化法制备了三氯乙酰氯，开发了一条利用该副产物的新路线．并考察了反应温度、原料配比、停留时间等因素对反应收率和产品纯度的影响，优化的反应条件为：反应温度130～140℃，n乙酸氧：n氧气=1：4.5．产品纯度可达99．7％，收率达95％．提出了一个宏观动力学模型，并进行了参数估计，根据该动力学模型，通过模拟计算对部分操作条件进行了分析和优化．A large volume of by - product acetyl chloride was produced during the process of the synthesis of methytriacetaloxidesilane. The usage of the acetyl chloride was very limited as it contained a lot of impurities such as chlorotrimethylsilane. A new processing method was described to utilize the acetyl chloride. Trichloroacetyl chloride was synthesized by means of gas - solid catalytic chlorination with acetyl chloride and chlorine as the raw materials. The effects of reaction temperature, the ratio of reactants and retention time on the yield of the reaction and the purity of the product were investigated. Suitable conditions were investigated： reaction temperature 130 ～ 140 ℃, the acetyl chloride to chlorine 1 ：4.5. The purity of the product and the yield can reach 99.7% and 95% respectively. A model for reaction kinetics was proposed and the model parameters were evaluated. Based on the model, some operation parameters were analyzed and optimized through simulation and caculation.

关 键 词：乙酰氯 三氯乙酰氯 气固相催化氯化 动力学模型 

分 类 号：TQ203.2[化学工程—有机化工]