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| Sulfonic-Functionalized Organic Polystyrene/Inorganic Hydrogen Zirconium Phosphate Catalyzed Epoxidation of Soybean Oil |
| Author Name | Affiliation | E-mail | | ZOU Xiao-Chuan | College of Biological & Chemical Engineering, Chongqing University of Education, Chongqing 400067, China | | | HUANG Lin-Yu | College of Biological & Chemical Engineering, Chongqing University of Education, Chongqing 400067, China | | | QUAN Wen-Xuan | College of Biological & Chemical Engineering, Chongqing University of Education, Chongqing 400067, China | | | WANG Cun | College of Biological & Chemical Engineering, Chongqing University of Education, Chongqing 400067, China | | | WANG Yue | College of Biological & Chemical Engineering, Chongqing University of Education, Chongqing 400067, China | | | ZHAO Xin | Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China | zhaoxin@cque.edu.cn | | TAN Zhi-Wen | College of Chemistry, Chongqing Normal University, Chongqing 401331, China | |
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| Abstract: Two kinds of sulfonic-fictionalized organic polystyrene/inorganic zirconium hydrogen phosphate heterogeneous catalysts were firstly prepared. The catalysts were characterized by Fourier infrared spectroscopy (FT-IR), N2 adsorption-desorption test, X-ray diffraction (XRD) and scanning electron microscope (SEM). A possible model of the catalyst was proposed. Secondly, the catalytic performance of heterogeneous catalysts was investigated in the epoxidation of soybean oil. The results showed that the heterogeneous catalysts could effectively catalyze epoxidation of soybean oil with tert-butyl hydroperoxide (TBHP) as oxidant. Compared with catalyst 1 (sulfonic-functionalized zirconium oligo-polystyrenyl phosphonate-phosphate), catalyst 2 (sulfonic-functionalized zirconium poly(styrene-phenylvinylphosphonate)-phosphate) showed higher catalytic activity under the same conditions (Yield:58.6% vs 53.3%). It is mainly attributed to the larger specific surface area, pore volume and pore size of catalyst 2, which provides sufficient catalytic sites for substrate and catalyst contact. Finally, after repeated use for 7 times of the catalyst 2, there was no significant decrease in catalytic activity. Interestingly, after the end of the 8th reaction, the catalyst was allowed to stand in 2 mol·L-1 dilute hydrochloric acid for overnight, and the catalytic activity was restored again at the 9th and 10th cycle. |
| Keywords: organic polystyrene/inorganic zirconium hydrogen phosphate sulfonic-functionalized heterogeneous catalysis oxidation |
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| ZOU Xiao-Chuan,HUANG Lin-Yu,QUAN Wen-Xuan,WANG Cun,WANG Yue,ZHAO Xin,TAN Zhi-Wen.Sulfonic-Functionalized Organic Polystyrene/Inorganic Hydrogen Zirconium Phosphate Catalyzed Epoxidation of Soybean Oil[J].Chinese Journal of Inorganic Chemistry,2019,35(8):1349-1356. |
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