Results 11 to 20 of about 7,111 (212)

Artificial-Intelligence-Assisted Investigation of Quality and Yield of Cumene Production

Materials Proceedings
Global demand for cumene is rising day by day due to its broad applications in the production of numerous types of polymers like nylon-6, epoxy resins, and polycarbonates. Efforts to enhance process design and operation efficiency are ongoing.
Asad Ayub, Muhammad Zulkefal, Hamza Sethi   +2 more
doaj   +2 more sources

Current status and future tends of combined process for producing acetone and phenol. II. Intensification methods of cumene oxidation process

Тонкие химические технологии, 2008
The application of ozone as initiator of cumene oxidation is shown to result in feed conversion increased to 28%, with selectivity closed to 100%, instead of accordingly 21% and 88% in method using cumene hydroperoxide as initiator.
L. B. Larin, E. V. Egorova, E. A. Ananieva   +2 more
doaj   +1 more source

DFT-assisted rational design of salan ligands for highly enantioselective Zr-salan-catalyzed hydroxylation of cyclic <i>β</i>-keto esters. [PDF]

Smart Mol
Guided by DFT calculations, the design of novel C1‐symmetric salan ligands without the involvement of Suzuki coupling was achieved, and the preparation of α‐hydroxy‐β‐ketoesters in 99% yield and 99% ee was realized under low catalyst loading. Abstract In this work, a structurally simple, inexpensive, and readily accessible Zr–salan catalytic system was
Ma C, Tang K, Jiang Y, Zhu H, Wu Y, Xing Y, Wang Y, Liu Q, Du J, Meng Q.   +9 more
europepmc   +2 more sources

Electrochemical Hydrogenation of Alpha Methyl Styrene to Cumene

International Journal of Electrochemical Science, 2020
A new hydrogenation process for atmospheric pressure conversion of alpha methyl styrene (AMS) to cumene is described. Formate ion is provided as a proton transfer agent in the reaction which involves AMS and water in the presence of a palladium catalyst.
Debalina Dasgupta, Kanchan Mondal, Gautham Jegadeesan, Shashi Lalvani   +3 more
doaj   +1 more source

Electro-conversion of cumene into acetophenone using boron-doped diamond electrodes

Beilstein Journal of Organic Chemistry, 2022
A straightforward electro-conversion of cumene into acetophenone has been reported using boron-doped diamond (BDD) electrodes. This particular conversion is driven by the addition reaction of a cathodically generated hydroperoxide anion to an anodically ...
Mana Kitano, Tsuyoshi Saitoh, Shigeru Nishiyama, Yasuaki Einaga, Takashi Yamamoto   +4 more
doaj   +1 more source

Partition Equilibrium of Cumene Hydroperoxide between Water and Cumene [PDF]

Bulletin of the Chemical Society of Japan, 1956
Abstract The partition equilibrium was investigated in relation to the steam-blowing and stripping, during and after the hydroperoxidation of cumene, and the following results were obtained. 1. Equilibrium constant K does not depend on the concentration of CHP within the limit of experimental error, but it depends on the ...
Shigehiko Yamada, Tokio Kat\={o}
openaire   +1 more source

The genome-wide early temporal response of Saccharomyces cerevisiae to oxidative stress induced by cumene hydroperoxide. [PDF]

PLoS ONE, 2013
Oxidative stress is a well-known biological process that occurs in all respiring cells and is involved in pathophysiological processes such as aging and apoptosis. Oxidative stress agents include peroxides such as hydrogen peroxide, cumene hydroperoxide,
Wei Sha, Ana M Martins, Reinhard Laubenbacher, Pedro Mendes, Vladimir Shulaev   +4 more
doaj   +1 more source

Cyclic Thiosulfinates: Synthesis and Applications in Chemical Biology and Materials Science. [PDF]

Chembiochem
Cyclic thiosulfinates (CTs) are strained organosulfur heterocyclic compounds with a polarized ─S(═O)─S─ bond that enables selective thiol reactivity. Advances in synthesis afford tunable scaffolds that support efficient proximal thiol cross‐linking and enable applications in chemical biology and materials science. Cyclic thiosulfinates (CTs) constitute
Liebson B, Agar JN, Manetsch R, Parvatkar PT.   +3 more
europepmc   +2 more sources

Process Simulation & Sensitvity Analysis of Cumene Production from an Integrated Alkylation and Transalkylation Reaction [PDF]

, 2022
Cumene is a very important petrochemical commodity, mainly to produce phenol and acetone. The overall growth rate for cumene capacity has been healthy, averaging slightly less than 3.5 % per year to reach 18 million metric tons per year in 2017.
Hazmi, Hilman Ali
core   +1 more source

Energy Efficient Catalytic Reaction and Production of Cumene [PDF]

, 2001
Alkylation reactions of benzene with propylene using zeolites were studied for their affinity for cumene production. The current process for the production of cumene involves heating corrosive acid catalysts, cooling, transporting, and distillation. This
Jarek, Russell L., Nenoff, Tina M., Thornberg, Steven M., Barrow, Stacia, Trudell, Daniel E.   +4 more
core   +1 more source