caa a22 4500 463253841 CHVBK 20180405153348.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10562-007-9129-2 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9129-2 Ba-ZnO catalysts for soybean oil transesterification [Elektronische Daten] [Wenlei Xie, Zhenqiang Yang] The transesterification of soybean oil to biodiesel using Ba-ZnO as a solid catalyst was investigated. The Ba-ZnO sample with loading of 2.5mmol/g Ba on ZnO and being calcined at 873K for 5h, was found to be the optimum catalyst, which could exhibit the highest basicity and the best catalytic activity for the reaction. When the transesterification reaction was carried out at reflux of methanol (338K), with a 12:1 molar ratio of methanol to oil and a catalyst amount of 6wt.%, the conversion of soybean oil was 95.8%. Furthermore, XRD, XPS, DTA-TG and the Hammett indicator method were employed for the catalyst characterizations, and the relation between the catalytic efficiency and the basicity of the catalysts was also discussed. Springer Science+Business Media, LLC, 2007 biodiesel nationallicence heterogeneous catalysis nationallicence transesterification nationallicence loading of Ba on ZnO nationallicence Xie Wenlei School of Chemistry and Chemical Engineering, Henan University of Technology, 450052, Zhengzhou, P.R. China aut Yang Zhenqiang School of Chemistry and Chemical Engineering, Henan University of Technology, 450052, Zhengzhou, P.R. China aut Catalysis Letters Springer US; http://www.springer-ny.com 117/3-4(2007-09-01), 159-165 1011-372X 117:3-4<159 2007 117 10562 https://doi.org/10.1007/s10562-007-9129-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9129-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xie Wenlei School of Chemistry and Chemical Engineering, Henan University of Technology, 450052, Zhengzhou, P.R. China aut NATIONALLICENCE 700 1- Yang Zhenqiang School of Chemistry and Chemical Engineering, Henan University of Technology, 450052, Zhengzhou, P.R. China aut NATIONALLICENCE 773 0- Catalysis Letters Springer US; http://www.springer-ny.com 117/3-4(2007-09-01), 159-165 1011-372X 117:3-4<159 2007 117 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer