The cumene process (cumene–phenol process, Hock process) is an industrial process for synthesizing phenol and acetone from benzene and propylene. The results depicted in figure 4 showed that increasing the mass fraction from 0.16 to 0.28 increased the conversion from 9.5% to 31.7%. RIS. IR spectra of (a) CoPW; (b) AC-CoPW (c) AC. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Reaction conditions: (H2O2/ Cumene) volume ratio =2.5; P(CO2) = 0.55 MPa; RT = 75°C; Rt = 7h. These metrics are regularly updated to reflect usage leading up to the last few days. This process is useful, when it is coupled with excess acetone production. One of the methods used to heterogenize polyoxometalates is to load them on a support. Cooxidation of Hydrocarbons in Liquid Phase. Journal of Molecular Catalysis A: Chemical. Gerald Booth "Naphthalene Derivatives" in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. L. M. Pisarenko, T. V. Maksimova, O. T. Kasaikina. These reflections indicated that the graphitic structure of AC was preserved after oxidation treatment. Quantitative analysis was done occasionally by Gas chromatography-mass spectrometry (GC-MS) using a Thermo Trace GC Ultra gas chromatograph AI 3000 equipped with a TR-5 MS-SQC capillary column (30 m × 0.25 mm i.d., phase thickness 0.25 μm) was used with helium as the carrier gas (at a flow rate of 1 ml min−1). You’ve supercharged your research process with ACS and Mendeley! Reaction conditions: RT = 75 °C; P(CO2) = 0.55 MPa; Rt = 7h. The most commonly used oxidants for oxidation reactions are tert-butyl hydroperoxide, hydrogen peroxide and nitric acid. These results are confirmed by the surface area measurement. Indeed,the keggin heteropolyoxotungstates have 12 peripheral tungsten atoms (W) and each W atom has a large positive charge. Among the catalysts used in oxidation reactions, polyoxometalates have proved their effectiveness thanks to their oxidizing and acidic properties that can be adjusted to catalyze specific reactions by the choice of heteroatom, counter-anion and addenda atoms (Katryniok et al 2013). Materials Research Express, Higher CO2 pressure and short reaction times favor Ph-PrOH formation, whereas longer reaction times favor Ph = O and Ph-OH. This positive charge makes the heteropolytungstates capable of accepting electron pairs in vacant W orbitals to form a stable complex with H2O2. Published by IOP Publishing Ltd, Belgian Nuclear Research Center (SCK CEN), Shandong Institute of Advanced Technology, Research Engineer in Materials Science and Strain Measurements using Neutron Diffraction. Variation of the conversion and product selectivities with reaction time over AC-CoPW catalyst.

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