Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst
By performing the reaction for one hour at three different temperatures, the thermodynamic properties of the epoxidation reaction using tungstate-based catalyst of RSO and eRSO were determined. The rate constant of these epoxidation reactions were varied from 0.57.10-2 to 1.01.10-2 l.mol-1.s-1 with...
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H. : ĐHQGHN
2019
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الوصول للمادة أونلاين: | http://repository.vnu.edu.vn/handle/VNU_123/63616 https://doi.org/10.25073/2588-1140/vnunst.4799 |
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المؤسسة: | Vietnam National University, Hanoi |
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oai:112.137.131.14:VNU_123-636162019-01-14T08:00:19Z Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst Nghiên cứu động học phản ứng epoxy hóa dầu hạt cao su sử dụng xúc tác trên cơ sở muối vônfram Nguyen, Thị Thuy Nguyen, Thanh Liem Vu, Minh Duc Epoxidized rubber seed oil Kinetic Tungstate-based catalyst By performing the reaction for one hour at three different temperatures, the thermodynamic properties of the epoxidation reaction using tungstate-based catalyst of RSO and eRSO were determined. The rate constant of these epoxidation reactions were varied from 0.57.10-2 to 1.01.10-2 l.mol-1.s-1 with RSO and 0.97.10-2 to 1.76.10-2 l.mol-1.s-1 with eRSO. The activated energies of reaction were 6.2 and 6.6 kcal.mol-1, respectively. The enthalpy ΔH was positive indicating that the epoxidation process was a endothermic reaction, but the free-energy ΔF was also positive, so there was a specific temperature at which the epoxidation process was the most effective. Experimental results showed that 60oC was the most suitable temperature for epoxidation reaction of both RSO and eRSO with the conversion of 91.37% (RSO) and 94.87% (eRSO), the yield of 75.06% (RSO) and 89.56% (eRSO) and the selectivity was 0.82 (RSO) and 0.94 (eRSO), respectively. 2019-01-14T08:00:19Z 2019-01-14T08:00:19Z 2018 Article Nguyen, T. T., Nguyen, T. L., Vu, M. Đ. (2018). Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst. VNU Journal of Science: Natural Sciences and Technology, 34 (4), 16-20 http://repository.vnu.edu.vn/handle/VNU_123/63616 https://doi.org/10.25073/2588-1140/vnunst.4799 en VNU Journal of Science; application/pdf H. : ĐHQGHN |
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Epoxidized rubber seed oil Kinetic Tungstate-based catalyst |
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Epoxidized rubber seed oil Kinetic Tungstate-based catalyst Nguyen, Thị Thuy Nguyen, Thanh Liem Vu, Minh Duc Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst |
description |
By performing the reaction for one hour at three different temperatures, the thermodynamic properties of the epoxidation reaction using tungstate-based catalyst of RSO and eRSO were determined. The rate constant of these epoxidation reactions were varied from 0.57.10-2 to 1.01.10-2 l.mol-1.s-1 with RSO and 0.97.10-2 to 1.76.10-2 l.mol-1.s-1 with eRSO. The activated energies of reaction were 6.2 and 6.6 kcal.mol-1, respectively. The enthalpy ΔH was positive indicating that the epoxidation process was a endothermic reaction, but the free-energy ΔF was also positive, so there was a specific temperature at which the epoxidation process was the most effective. Experimental results showed that 60oC was the most suitable temperature for epoxidation reaction of both RSO and eRSO with the conversion of 91.37% (RSO) and 94.87% (eRSO), the yield of 75.06% (RSO) and 89.56% (eRSO) and the selectivity was 0.82 (RSO) and 0.94 (eRSO), respectively. |
format |
Article |
author |
Nguyen, Thị Thuy Nguyen, Thanh Liem Vu, Minh Duc |
author_facet |
Nguyen, Thị Thuy Nguyen, Thanh Liem Vu, Minh Duc |
author_sort |
Nguyen, Thị Thuy |
title |
Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst |
title_short |
Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst |
title_full |
Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst |
title_fullStr |
Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst |
title_full_unstemmed |
Kinetic Study of Epoxidation of Rubber Seed Oil Using Tungstate-based Catalyst |
title_sort |
kinetic study of epoxidation of rubber seed oil using tungstate-based catalyst |
publisher |
H. : ĐHQGHN |
publishDate |
2019 |
url |
http://repository.vnu.edu.vn/handle/VNU_123/63616 https://doi.org/10.25073/2588-1140/vnunst.4799 |
_version_ |
1680965919450333184 |