非酸催化合成增塑剂邻苯二甲酸双十六烷基酯  

Synthesis of Cetyl Phthalate by Non-Acid Catalyst

作　　者：潘朝群[1] 康英姿[1] 黄阔[1] 

机构地区：[1]华南理工大学化工与能源学院,广东广州510641

出　　处：《化学工业与工程》2007年第1期16-19,共4页Chemical Industry and Engineering

摘　　要：以苯酐与十六醇为原料,选用非酸催化剂,在实验室合成了增塑剂邻苯二甲酸双十六烷基酯。考察了反应温度、反应时间和催化剂及物料配比对产率的影响。试验结果表明:反应温度控制在220℃、十六醇和苯酐的摩尔比为3.0、总物料中催化剂的质量分数w=0.2%、反应时间为4.5h时、催化剂的加入温度在180℃以上,产率达到98%以上。合成工艺过程中无三废产生,反应产物提纯后,经过红外光谱分析,确定产物为邻苯二甲酸双十六烷基酯。Cetyl phthalate was prepared from phthalic anhydride and cetyl alcohol as raw materials catalyzed by non-acid catalyst. The effects of reaction temperature, reaction time, catalyst and the molar ratio of raw materials on the yield of product were discussed. The experimental results showed that the yield of cetyl phthalate was up to 98 % when the reaction temperature was 220℃ the ratio of cetyl alcohol to phthalic anhydride was 3.0, the mass concentration of catalyst was 0.2%, the reaction time was 4.5 h, the adding temperature of catalyst was over 180℃. The whole process can be carried out under mild reaction condition, easy manipulation, post-treatment, short reaction time and without any waste gas, water or solid produced. The IR spectrogram of the product was identical with that of the target product.

关 键 词：邻苯二甲酸双十六烷基酯 非酸催化剂 钛酸丁酯 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]