Cr／Cu催化剂催化正丁腈水合反应合成丁酰胺.pdfVIP

维普资讯 学兔兔 化 工 进 展 ·444· CHEMICAL INDUSTRY AND ENGINEERING PROGRESS 2008年第27卷第3期 Cr／Cu催化剂催化正丁腈水合反应合成丁酰胺 高 俊 ，史继诚 ( 大庆炼化公司，黑龙汀 大庆 163411； 大连交通大学环境与化学_r程学院，辽宁 大连 116028) 摘 要：对正丁腈与水发生水合反应合成丁酰胺的方法进行了研究，在Cr／Cu催化剂制备过程中，当次磷酸钠与 硫酸铜摩尔比为1．50～1．60、Cr／Cu摩尔比为0．004~0．006、最高反应温度控制为55~57℃时，所制备的Cr／Cu 催化剂活性最高；正丁腈与水进料的摩尔比为l：4．8，Cr／Cu催化剂浓度为22％~25％，反应温度为95～100℃， 反应停留时间5～6 h，在此务件下，正丁腈的转化率接近 100％；建立了丁酰胺生产3-艺流程，在小试实验中， 正丁腈的转化率为99％，丁酰胺产量90 g／h，丁酰胺的纯度达到了99．9％以上。 关键词：Cr／Cu催化剂；水合反应；正丁腈；丁酰胺 中图分类号：TQ 032．4l 文献标识码：A 文章编号：1000—6613(2008)03—0444—04 Butyramide synthesis through butyronitrile hydration reaction with Cr／Cu catalyst GAO Jun ，SHIJicheng ( Daqing Refining＆Chemical Company，PetroChina，Daqing 163411，Heilongjiang，China： School ofEnvironmental ＆Chemical Engineering，Dalian Jiaotong University，Dalian l16028，Liaoning，China) Abstract：The method of butyramide synthesis through hydration reaction of butyronitrile with water was studied．It was found that the highest activity of that Cr／Cu catalyst was obtained when the molar ratio of NaH2PO2／CuSO4 was 1．50— 1．60 and that of Cr／Cu was 0．004—0．006 at the highest reaction temperature range of 55— 57 ℃．The experimental results showed that the conversion rate of butyronitrile was uD to 1 00％under the optimal reaction condition of the feed molar ratio of butyronitrile and water 1：4．8，Cr／Cu catalyst concentration 22％一25％ reaction temperature 95— 1 00℃ and residence time 5～6 h．In the expe