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对苯二甲酸和1,4丁二醇的单酯化催化动力学 被引量:5
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作者 李应宾 曾作祥 +1 位作者 薛为岚 章添钰 《广东化工》 CAS 2010年第3期65-66,100,共3页
文章主要是研究了对苯二甲酸和1,4丁二醇的单酯化反应动力学。该酯化的反应级数是通过初始速率法测得的。该反应应用的催化剂是丁基锡酸和钛酸四丁酯。实验结果显示对苯二甲酸的反应级数是根据催化剂的不同而在2到0.7之间变化的。反应... 文章主要是研究了对苯二甲酸和1,4丁二醇的单酯化反应动力学。该酯化的反应级数是通过初始速率法测得的。该反应应用的催化剂是丁基锡酸和钛酸四丁酯。实验结果显示对苯二甲酸的反应级数是根据催化剂的不同而在2到0.7之间变化的。反应活化能和速率常数也分别被测得。 展开更多
关键词 酯化 对苯二甲酸 1 4丁二醇 动力学 催化剂
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Kinetics of the Mono-esterification Between Terephthalic Acid and 1,4-Butanediol 被引量:4
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作者 田文玉 曾作祥 +2 位作者 薛为岚 李应宾 章添钰 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2010年第3期391-396,共6页
The chemical kinetics of the monoesterification between terephthalic acid(TPA)and 1,4-butanediol (BDO)catalyzed by a metallo-organic compound was studied using the initial rate method.The experiments were carried out ... The chemical kinetics of the monoesterification between terephthalic acid(TPA)and 1,4-butanediol (BDO)catalyzed by a metallo-organic compound was studied using the initial rate method.The experiments were carried out in the temperature range of 463-483 K,and butylhydroxyoxo-stannane(BuSnOOH)and tetrabutyl titanate[Ti(OBu)4]were used as catalyst respectively.The initial rates of the reaction catalyzed by BuSnOOH or Ti(OBu)4 were measured at a series of initial concentrations of BDO(or TPA)with the concentration of TPA(or BDO)kept constant.The reaction orders of reagents were determined by the initial rate method.The results indicate that the reaction order for TPA is related with the species of catalyst and it is 2 and 0.7 for BuSnOOH and Ti(OBu)4 respectively.However,the order for BDO is the same 0.9 for the two catalysts.Furthermore,the effects of temperature and catalyst concentration are investigated,and the activation energies and the reaction rate constants for the two catalysts were determined. 展开更多
关键词 ESTERIFICATION 1 4-butanediol terephthalic acid KINETICS
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