环保增塑剂DOTP的合成工艺研究  

Preparation process of environment- friendly plasticizers DOTP

作　　者：李科[1,2,3,4] 蒋剑春[1,2,3,4] 聂小安[1,2,3,4] 李文华[5] 

机构地区：[1]中国林业科学研究院林产化学工业研究所 [2]生物质化学利用国家工程实验室 [3]国家林业局林产化学工程重点开放性实验室 [4]江苏省生物质能源与材料重点实验室,江苏南京210042 [5]南京林业大学化学工程学院,江苏南京210037

出　　处：《化学工程师》2014年第4期4-6,10,共4页Chemical Engineer

基　　金：中国林科院院所基金项目(CAFYBB2011010);林业公益性行业专项(201004001)

摘　　要：研究了环保增塑剂DOTP的合成工艺,结果表明,磨浆可有效减小粒径促进反应,得出了体系中酯醇物质的量之比与泡点的关系,及Y=0.0002X2-0.0307X+0.3439;并通过正交实验得出合成的最佳工艺条件为:醇酸物质的量之比为2.6∶1;催化剂用量0.5%,当反应3h后,酸值即可小于2mgKOH·g-1,反应6h可达到0.63mgKOH·g-1,温度仅230℃左右。The preparation process of DOTP from terephthalic acid and isooctyl alcohol was studied, the results showed that pulping can effectively reduce the particle size and promoting reaction; The relationship between molar ratio of alcohol and the bubble point was concluded, it＇s Y=0.0002X2-0.0307X＋0.3439; orthogonal experiment showed that the ideal reaction conditions were： the ratio of the molar ratio of alcohol and acid is 2.6：1; catalyst is 0.5%, when the reaction continue 3 hours, the acid value can be less than 2mgKOH ·g^-1, reaction 6 hours can reach 0.63 mgKOH· g^-1, temperature is only about 230℃.

关 键 词：增塑剂 对苯二甲酸 酯化反应 对苯二甲酸二异辛酯 

分 类 号：TQ414[化学工程]