01458nab a2200193 4500 20260520000830.0 260224s2009 xxu Application of sodium aluminate as a heterogeneous base catalyst for biodiesel production from soybean oil ene. 2009 31/07/2009 ; 31/07/2009 3 p. ; 1089-1092 Transcripción del resúmen publicado por el autor: In this study, the production of biodiesel from soybean oil by transesterification was carried out over sodium aluminate as a heterogeneous catalyst. The solid base showed high catalytic activity for methanolysis reaching a 93.9% yield under optimal reaction conditions (reflux temperature, 1.5 wt% of catalyst, 12:1 molar ratio of methanol/oil, and 50 min). The catalyst treated at different temperatures was characterized by inductively coupled plasma-optical emission spectroscopy (ICP-OES), X-ray diffraction (XRD), thermogravimetry/differential thermogravimetry (TG/DTG), and Fourier transform infrared spectroscopy (FT-IR). The reaction contained homogeneous and heterogeneous contributions at the same time. Removing water and carbon dioxide was an effective way to elevate the catalyst stability in methanol. Energy & fuels 23 ARTICULO Wan, Tao 41696 Yu, Ping 41697 Wang, Shenggang 41698 170241 170241 0 0 0 0 238060 BAAB BAAB 2026-03-05 200045068 0 200045068 2026-03-05 15:12:30 2026-03-05 ARTICULO