期刊
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
卷 80, 期 6, 页码 601-604出版社
WILEY
DOI: 10.1007/s11746-003-0745-6
关键词
biodiesel; catalytic soybean transesterification; lead complex; maltol; mercury complex; tin complex; zinc complex
We report here the synthesis, characterization, and use of tin (3-hydroxy-2-methyl-4-pyrone)(2)(H2O)(2), lead (3-hydroxy-2-methyl-4-pyrone)(2) (H2O)(2), mercury (3-hydroxy-2-methyl-4-pyrone)(2)-(H2O)(2), and zinc (3-hydroxy-2-methyl-4-pyrone)(2)(H2O)(2) as catalysts in the transesterification reaction of soybean oil with methanol. All complexes are active in this reaction, with the following decreasing activities: Sn2+ much greater than Zn2+ > Pb2+ approximate to Hg2+. The catalytic activities of these complexes were also compared with classical alkali and acid transesterification catalysis (with NaOH and H2SO4).
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