[PDF][PDF] Heterogeneous catalysts for liquid-phase oxidations: philosophers' stones or Trojan horses

RA Sheldon, M Wallau, I Arends… - Accounts of Chemical …, 1998 - academia.edu
In the early seventies one of us1 was involved in the development of the heterogeneous Ti
(IV)/SiO2 catalyst which forms the basis of the Shell process for the epoxidation of propylene …

Catalytic performance of advanced titanosilicate selective oxidation catalysts–a review

J Přech - Catalysis Reviews, 2018 - Taylor & Francis
This review article aims to cover the state-of-the-art of titanosilicate catalysts for selective
oxidations developed within past seven years. Many elaborated materials (eg, layered and …

Chemical and technical aspects of propene oxide production via hydrogen peroxide (HPPO process)

V Russo, R Tesser, E Santacesaria… - Industrial & …, 2013 - ACS Publications
Propene oxide is a very important chemical whose production technology has changed a lot
during the last 30 years. Nowadays, the most promising technology is the HPPO process in …

Lewis acid zeolites for biomass conversion: Perspectives and challenges on reactivity, synthesis, and stability

HY Luo, JD Lewis… - Annual review of chemical …, 2016 - annualreviews.org
Zeolites containing Sn, Ti, Zr, Hf, Nb, or Ta heteroatoms are versatile catalysts for the
activation and conversion of oxygenated molecules owing to the unique Lewis acid …

Mild oxidation with H2O2 over Ti-containing molecular sieves—a very efficient method for removing aromatic sulfur compounds from fuels

V Hulea, F Fajula, J Bousquet - Journal of Catalysis, 2001 - Elsevier
This contribution relates a new application of Ti-containing molecular sieves as catalysts for
the oxidation of aromatic sulfur compounds with hydrogen peroxide under mild conditions …

Crystallization behavior of zeolite beta in OSDA-free, seed-assisted synthesis

Y Kamimura, S Tanahashi, K Itabashi… - The Journal of …, 2011 - ACS Publications
Recent reports on the organic structure-directing agent (OSDA)-free synthesis of some
zeolites with the aid of seed crystals have opened a new way to the robust and …

Transition state stabilization depends on solvent identity, pore size, and hydrophilicity for epoxidations in zeolites

JZ Tan, DT Bregante, C Torres, DW Flaherty - Journal of Catalysis, 2022 - Elsevier
Ti-silicates activate H 2 O 2 to form Ti-hydroperoxo and Ti-peroxo intermediates that can
react with alkenes to form epoxide products. Comparisons of kinetics for 1-octene …

Styrene oxidation with H2O2 over Ti-containing molecular sieves with MFI, BEA and MCM-41 topologies

V Hulea, E Dumitriu - Applied Catalysis A: General, 2004 - Elsevier
A comparative study concerning the use of Ti-containing molecular sieves with MFI (TS-1),
BEA (Ti-beta) and MCM-41 (TiMCM-41) topologies for the styrene oxidation in liquid phase …

Engineering intraporous solvent environments: effects of aqueous-organic solvent mixtures on competition between zeolite-catalyzed epoxidation and H 2 O 2 …

DS Potts, C Torres, O Kwon, DW Flaherty - Chemical Science, 2023 - pubs.rsc.org
Solvent molecules alter the free energies of liquid phase species and adsorbed
intermediates during catalytic reactions, thereby impacting rates and selectivities. Here, we …

Delamination of Ti-MWW and high efficiency in epoxidation of alkenes with various molecular sizes

P Wu, D Nuntasri, J Ruan, Y Liu, M He… - The Journal of …, 2004 - ACS Publications
A new titanosilicate, named Del-Ti-MWW, has been prepared by delaminating the lamellar
precursor of Ti-MWW, which is postsynthesized from highly deboronated MWW zeolite with …