| 对苯二甲酸-丁二醇催化单酯化反应动力学(英文) |
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| 引用本文： | 田文玉,曾作祥,薛为岚,李应宾,章添钰.对苯二甲酸-丁二醇催化单酯化反应动力学(英文)[J].中国化学工程学报,2010,18(3):391-396. |
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| 作者姓名： | 田文玉 曾作祥 薛为岚 李应宾 章添钰 |
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| 作者单位： | 1. Department of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;2. Institute of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| 摘 要： | 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 deter-mined.
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| 关 键 词： | esterification 1 4-butanediol terephthalic acid kinetics |
| 收稿时间： | 2009-11-23 |
| 修稿时间： | 2009-11-23
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Kinetics of the mono-esterification between terephthalic acid and 1,4-butanediol |
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| TIAN Wenyu,ZENG Zuoxiang,XUE Weilan,LI Yingbin,ZHANG Tianyu.Kinetics of the mono-esterification between terephthalic acid and 1,4-butanediol[J].Chinese Journal of Chemical Engineering,2010,18(3):391-396. |
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| Authors: | TIAN Wenyu ZENG Zuoxiang XUE Weilan LI Yingbin ZHANG Tianyu |
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| Affiliation: | Department of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China |
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| Abstract: | 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)4respectively. 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. |
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| Keywords: | esterification 1 4-butanediol terephthalic acid kinetics |
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