17385-32-9Relevant academic research and scientific papers
High selectivity of MCM-22 for cyclopentanol formation in liquid-phase cyclopentene hydration
Nuntasri, Duangamol,Wu, Peng,Tatsumi, Takashi
, p. 272 - 280 (2007/10/03)
Highly effective formation of cyclopentanol through the liquid-phase hydration of cyclopentene has been attempted on various zeolites catalysts. MCM-22 zeolite was the most selective catalyst, which actively converted cyclopentene to cyclopentanol with a selectivity up to 99%. The effects on the hydration of catalyst preparation method, reaction atmosphere and temperature have been investigated for the MCM-22 catalysts. On the basis of the effect of reaction atmosphere, the mechanism of liquid-phase cyclopentene hydration was proposed. The thermodynamic equilibrium between cyclopentene and cyclopentanol was suggested to control greatly the cyclopentene conversion. The cyclopentene conversion was increased to 10% by increasing the water/cyclopentene ratio. Poisoning using organic amines with different molecular sizes revealed that the hydration occurred mainly in the 10-membered ring channels of MWW structure, which had an elliptic aperture smaller than that of MFI structure, exhibiting a significant shape selectivity by suppressing the etherification cyclopentanol.
Highly selective formation of cyclopentanol through liquid-phase cyclopentene hydration over MCM-22 catalysts
Nuntasri, Duangamol,Wu, Peng,Tatsumi, Takashi
, p. 224 - 225 (2007/10/03)
MCM-22 catalyst exhibits an extremely high shape selectivity not observed on other zeolites of MFI, MOR and BEA structures, in that it effectively catalyzes the liquid-phase hydration of cyclopentene at a conversion up to 10% and a cyclopentanol selectivi
