- Journal of the Turkish Chemical Society Section A: Chemistry
- Vol: 3 Issue: 3 Special Issue
- SELECTIVE GAS PHASE OXIDATION OF MONOCHLOROTOLUENES OVER MODIFIED OXOVANADIUM SYSTEMS SUPPORTED ON A...
SELECTIVE GAS PHASE OXIDATION OF MONOCHLOROTOLUENES OVER MODIFIED OXOVANADIUM SYSTEMS SUPPORTED ON Al2O3 AND SiO2
Authors : Elmir Magsad Babayev, Arif Javanshir Efendi, Fakhriyya Mashallah Nasiri, Bilqeyis Adil Ismayilova, Firuza Alasgar Yunisova
Pages : 597-606
Doi:10.18596/jotcsa.07999
View : 4 | Download : 2
Publication Date : 2017-01-08
Article Type : Other
Abstract :V-Mo-O/SiO 2 materials were prepared by the impregnation techniques and characterized by Scanning Electron Microscopy (SEM), FT-IR, Thermal analysis, N 2 adsorption/desorption and X-ray powder diffraction (XRD) to determine the phase structure and loadings of vanadium species. This material was tested for solvent-free catalytic oxidation of monochlorotoluene under chosen conditions. The result shows that V-Mo-O/SiO 2 is effective catalysts, exhibiting conversion of monochlorotoluene and selectivity monochloromaleic anhydride 75–85%, 24–32% respectively. Furthermore, the catalyst can be easily recovered and reused for 20-25 hours without a significant loss in its activity and selectivity. The oxidation rate and direction determined by the temperature (315-450 0 C), proportions between the reagents (1:1–1:15 mol/l), bond dissociation energies, the effects of active components of catalyst and contact time.Keywords :