论文部分内容阅读
本研究首次采用了以ZT－2载体固体酸为催化剂的多相催化工艺合成了松香甘油酯。研究了催化剂的制备、用量、反应活性、使用寿命等。并对酯化反应的原料配比、反应温度、反应时间、保护气体种类进行了充分研究。确定最佳工艺条件：反应物料摩尔比为1：1，ZT－2载体固体酸催化剂用量为0.06％（以松香计）。反应时间2．5h、反应温度260℃．保护气CO。实验表明：该工艺与利用质子酸或Lewis酸（ZnO）均相催化酯化传统工艺相比，反应时间缩短了3．5h、反应温度降低20℃、实现了催化剂与产品的分离和再利用、且具有不腐蚀设备等优越性。产品质量（如软化点和酸值）也得到相应的提高。
This study for the first time using ZT-2 carrier solid acid catalyst heterogeneous catalytic synthesis of rosin glycerides. The preparation, dosage, reactivity and service life of the catalyst were studied. The esterification reaction of the ratio of raw materials, reaction temperature, reaction time, the type of protective gas were fully studied. Determine the optimum process conditions: the molar ratio of the reaction material is 1: 1, the amount of ZT-2 carrier solid acid catalyst is 0.06% (based on rosin). Reaction time 2.5h, reaction temperature 260 ℃. Protective gas CO. The experimental results show that the reaction time is shortened by 3.5h and the reaction temperature is reduced by 20 ℃ compared with the traditional process of homogeneous esterification catalyzed by protonic acid or Lewis acid (ZnO). The separation and recycle of catalyst and product are realized, And does not corrode the equipment and other advantages. Product quality (such as softening point and acid value) have also been correspondingly improved.