direct oxidation of benzene to phenol in liquid phase by h2o2 over vanadium catalyst supported on highly ordered nanoporous silica
Authors
abstract
vanadium supported on highly ordered nanoporous silica (vox-lus-1) was synthesized and characterized by xrd, nitrogen adsorption‑desorption isotherms and uv-visible spectrophotometer. direct oxidation of benzene to phenol in liquid phase by h2o2 peroxide were examined by using various solvents (methanol, acetone, acetic acid, acetonitryl). the maximum yield (25%) and selectivity (73%) of the phenol produced were obtained in the presence of acetic acid. the catalyst can be reused for several times without any appreciable loss of activity.
similar resources
Direct oxidation of benzene to phenol in liquid phase by H2O2 over vanadium catalyst supported on highly ordered nanoporous silica
Vanadium supported on highly ordered nanoporous silica (VOx-LUS-1) was synthesized and characterized by XRD, Nitrogen adsorption‑desorption isotherms and UV-visible spectrophotometer. Direct oxidation of benzene to phenol in liquid phase by H2O2 peroxide were examined by using various solvents (methanol, acetone, acetic acid, acetonitryl). The maximum yield (25%) and selectivity (73%) of the ph...
full textDirect oxidation of benzene to phenol in liquid phase by H2O2 over vanadium catalyst supported on highly ordered nanoporous silica
Vanadium supported on highly ordered nanoporous silica (VOxLUS-1) was synthesized and characterized by XRD, Nitrogen adsorption desorption isotherms and UV-visible spectrophotometer. Direct oxidation of benzene to phenol in liquid phase by H2O2 peroxide was examined by using various solvents (methanol, acetone, acetic acid, acetonitryl). The maximum yield (25%) and selectivity (73%) of the phen...
full textDirect Oxidation of Benzene to Phenol in Liquid Phase over Nanoporous Silica of Chromium-LUS-1
(Received: May 18, 2012; Accepted in Revised Form: February 4, 2013) Abstract: Direct oxidation of benzene to phenol in liquid phase in the medium of methanol, acetone, acetic acid and acetonitrile as a solvent over chromium catalyst supported on highly ordered nanoporous silica (Cr-LUS-1) by H O were examined. The best results obtained from methanol solvent with 20% yield and selectivity of 90...
full textPolyVinylPolyPyrrolidone-Supported Boron Trifluoride (PVPP-BF3); Highly Efficient Catalyst for Oxidation of Aldehydes to Carboxylic Acids and Esters by H2O2
A highly efficient method for the oxidation of aldehydes to carboxylic acids using PolyVinylPolyPyrrolidone supported - Boron Trifluoride (PVPP-BF3) in the presence of 35% hydrogen peroxide has been developed in acetonitrile at 60 °C. This procedure cleanly oxidizes variety of aldehydes to the corresponding carboxylic acids. Oxidative esterification of benzaldeh...
full textSynthesis and characterization of VOx/LUS-1 nanoporous silica and application for direct oxidation of benzene to phenol
The VOx/LUS-1 nanoporous silica synthesis and characterized by XRD, Nitrogen adsorption–desorption isotherms and UV-visible spectrophotometer. Direct oxidation of benzene to phenol in liquid phase by H2O2 peroxide were examined by using various (methanol, acetone, acetic acid, acetonitryl) solvents.
full textpolyvinylpolypyrrolidone-supported boron trifluoride (pvpp-bf3); highly efficient catalyst for oxidation of aldehydes to carboxylic acids and esters by h2o2
a highly efficient method for the oxidation of aldehydes to carboxylic acids using polyvinylpolypyrrolidone supported - boron trifluoride (pvpp-bf3) in the presence of 35% hydrogen peroxide has been developed in acetonitrile at 60 °c. this procedure cleanly oxidizes variety of aldehydes to the corresponding carboxylic acids. oxidative esterification of benzaldehyde utilizing pvpp-bf3/h2o2(35%) ...
full textMy Resources
Save resource for easier access later
Journal title:
journal of nanostructuresPublisher: university of kashan
ISSN 2251-7871
volume 1
issue 1 2012
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023