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Type: Artigo de evento
Title: Cyclohexane Oxidation Using Transition Metal-containing Aluminophosphates (mapo-vfi)
Author: Luna F.J.
Ukawa S.E.
Wallau M.
Schuchardt U.
Abstract: The preparation of Co-, Cr-, Fe-, Mn-, Ti-, and V-containing aluminophosphates (MAPO) with VFI structure is described. Physico-chemical techniques were used to characterize the solids synthesized. The MAPO-VFI were compared to AIPO-VFI impregnated with the various metals confirming the isomorphous substitution of Co, Cr, Fe, and Ti into the structure. V is coordinated to defect sites and Mn probably precipitated as oxide on the crystal surface. V- and CrAPO-VFI are active catalysts for the oxidation of cyclohexane with tert-butyl hydroperoxide producing cyclohexanone with some cyclohexanol and cyclohexene. CrAPO-VFI was recycled twice without significant loss of activity. On the other hand, VAPO VFI showed significant metal leaching.
Rights: fechado
Identifier DOI: 10.1016/S1381-1169(96)00271-3
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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