Journal of the American Oil Chemists’ Society

, Volume 73, Issue 2, pp 229–232 | Cite as

Ethenolysis of esters of vegetable oils: Effect of B2O3 addition to Re2O7/SiO2.Al2O3-SnBu4 and CH3ReO3/SiO2.Al2O3 metathesis catalysts

  • Dalmo Mandelli
  • Marcelo J. D. M. Jannini
  • Regina Buffon
  • Ulf Schuchardt


Impregnation of SiO2.Al2O3 (24.3% Al2O3 with 6% B2O3 increases the activity of supported Re2O7 in the ethenolysis of methyl oleate, but reduces the activity of CH3ReO3 on the same support. Re2O7/SiO2.Al2O3/B2O3-SnBu4 is shown to be an effective catalyst for the ethenolysis of methyl linoleate and of the methyl esters of olive oil, and can be recycled after calcination at least five times without loss of activity.

Key Words

B2O3 addition ethenolysis metathesis methyltrioxorthenium rhenium oxide silica-alumina vegetable oils 


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Copyright information

© AOCS Press 1996

Authors and Affiliations

  • Dalmo Mandelli
    • 1
  • Marcelo J. D. M. Jannini
    • 1
  • Regina Buffon
    • 1
  • Ulf Schuchardt
    • 1
  1. 1.Instituto de QuimicaUniversidade Estadual de CampinasCampinasBrazil

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