The results showed that the productivity of ethyl lactate was obviously improved by adding dehydrating agent and water-carrying agent in the reaction system. 结果表明,加入脱水剂和带水剂可以显著提高乳酸乙酯的产率。
Molar ratio of butanone to glycol, the dosage of catalyst, the volume of cyclohexane as the water-carrying agent and reaction time on the yield were discussed and the best conditions were found out. 探讨了丁酮与乙二醇量比、催化剂用量、带水剂及反应时间对收率的影响。
Glycerol triacetate was synthesized from glycerol and acetic acid using p-toluene sulphonic acid as catalyst and toluene as water-carrying agent. 以丙三醇和乙酸为原料,用对甲苯磺酸作催化剂,甲苯为带水剂,合成三醋酸甘油酯。
New Process of Sythesis of Propyl Gallate Without Water-Carrying Agent 无带水剂合成没食子酸丙酯新工艺
Trimethylolpropane tris-acrylate ( TMPTA) has been obtained by the reaction of trimethylolpropane ( TMP) and acrylic acid ( AA) with Ce2 ( SO4) 3 as catalyst and cyclohexane and toluene as water-carrying agent. 以三羟甲基丙烷(TMP)、丙烯酸(AA)为原料,硫酸铈为催化剂,环己烷和甲苯混合物为带水剂,合成了三羟甲基丙烷三丙烯酸酯。
The silane self-crosslinked LLDPE material without boiling was made in this paper by introducing the water-carrying agent into the silane grafted LLDPE, which overcome the disadvantage including the time and energy consumption, lower production efficiency of the traditional boiled process. 由于传统的水煮工艺耗能耗时,生产效率较低,本文通过在硅烷接枝LLDPE中引入产水剂,制得了免水煮的硅烷自交联LLDPE材料。