The Prins condensation between i-butene and formaldehyde over modified BEA and MFI zeolites in liquid phase
S. P. Bedenko, Andrey Kozhevnikov, K. I. Dement’ev, V. F. Tret’yakov, A. L. Maximov
Abstract
The liquid-phase Prins condensation between i-butene and formaldehyde was studied over parent and Mg-modified MFI and BEA zeolites with low Si/Al ratios. High catalytic activity and selectivity toward isoprene were obtained using the H-BEA zeolite. The H-MFI zeolite was confirmed as a highly selective catalyst for 3-methylbut-3-ene-1-ol production via Prins condensation. The influence of Mg-ion-exchange treatment on the catalytic behavior of the zeolites was studied; modification of BEA led to significant changes in the catalytic behavior, while Mg-MFI and H-MFI showed similar conversion of formaldehyde and similar product distribution.
Topics & Concepts
FormaldehydeCatalysisZeoliteIsopreneSelectivityPrins reactionChemistryCondensationProduct distributionButene1-ButeneZSM-5Ion exchangeOrganic chemistryChemical engineeringInorganic chemistryIonEthylenePolymerEngineeringPhysicsThermodynamicsCopolymerZeolite Catalysis and SynthesisCatalysis and Oxidation ReactionsCatalysis and Hydrodesulfurization Studies