Results 11 to 20 of about 65,683 (195)
The Direct Epoxidation of Propene in the Explosive Regime in a Microreactor—A Study into the Reaction Kinetics [PDF]
Industrial & Engineering Chemistry Research, 2010 The usage of a microreactor system for the direct epoxidation of propene over a gold-titania-based catalyst system using a mixture of hydrogen, oxygen, and propene allows for the safe operation of the reaction in the explosive regime. A kinetic study was performed on the effect of the concentration of hydrogen, oxygen, and propene on the reaction rate ...
Nijhuis, T.A. +3 more
core +6 more sources
The Epoxidation of Propene over Gold Nanoparticle Catalysts [PDF]
, 2008 Many gold nanoparticle catalysts on titania, silica, and titanosilicate supports are compared in the hydro-epoxidation of propene. All catalysts tested were active in the propene epoxidation, with Au/TiO2 showing the highest activity at low temperature, but also a high rate of deactivation. It is shown that the deactivation of the catalysts is directly
Nijhuis, T.A. +2 more
openaire +5 more sources
Efficient epoxidation of propene using molecular catalysts
Catal. Sci. Technol., 2014 The epoxidation of propene to propene oxide at mild conditions using molecular rhenium and molybdenum catalysts is presented.
Iulius I. E. Markovits +8 more
openaire +2 more sources
Comparison of a monolith and a confined Taylor flow (CTF) reactor for propene epoxidation [PDF]
, 2018 Heterogeneous catalytic epoxidation of propene to propene oxide with hydrogen peroxide was investigated in a monolith and a confined Taylor flow (CTF) reactor in which titanium silicalite (TS-1) catalyst was coated on the walls.
S. Shin, D. Chadwick
semanticscholar +2 more sources
New mechanistic insight in the gold-based propene epoxidation [PDF]
, 2009 Propene oxide is a very important intermediate for the synthesis of commercial products, including adhesives, paints, and cosmetics. The gas-phase epoxidation of propene over Au/Ti-based catalysts is an intriguing scientific topic, not only because of the industrial importance of the production of propene oxide, but also because this reaction offers ...
Inorganic Chemistry and Catalysis +3 more
openaire +4 more sources
Processes and possibilities for the epoxidation of propene
Preprints - American Chemical Society, Division of Petroleum Chemistry, 2007 Propene oxide, one of the mayor commodity chemicals used in chemical industry, is in need of a new process for its production because of the disadvantages encountered with the currently available processes. These processes, most importantly the chlorohydrin and the hydroperoxide processes, will be discussed.
Nijhuis, T.A. +3 more
openaire +2 more sources
Journal of Catalysis, 2016 A highly stable and active, Au/TiSiO2 catalyst was used to conduct an extensive kinetic study for the direct epoxidation of propene using hydrogen and oxygen in the non-explosive regime, with an aim to study the combined formation of propene oxide and water. A reaction mechanism was proposed which assumes that there are two types of Au sites: isolated,
Kanungo, Shamayita +4 more
openaire +3 more sources
Modification of chiral dimethyl tartrate through transesterification : immobilisation on POSS and enantioselectivity reversion in Sharpless asymmetric epoxidation [PDF]
, 2010 Modification of dimethyl tartrate has been investigated through transesterification with aminoalcohols to provide reactive functionalities for the covalent bonding of chiral tartrate to polyhedral oligomeric silsesquioxanes.
Van Grieken, Rafael +4 more
core +4 more sources
Reaction Enumeration Based on NBO-Informed Molecular Graphs. [PDF]
J Comput ChemNBO‐informed molecular graphs represent chemistry via valence orbitals rather than atomic connectivity, enabling consistent reaction analysis across environments. By identifying delocalized motifs and increasing complexity adaptively, the framework enables efficient exploration of inaccessible mechanisms and diverse catalytic and reaction networks for ...
Alfonso-Ramos JE, Stuyver T.
europepmc +2 more sources
Catalytic reaction engineering of propene epoxidation with hydrogen peroxide over titanium silicalite (TS-1) [PDF]
, 2011 Propene oxide is an important chemical intermediate in the chemical industry. The propene oxide industry has employed two different types of commercial processes for several decades: the chlorohydrin process and the hydroperoxidation process.
Shin, Sang Baek +2 more
core +2 more sources