Authors: A Tahar S Benadji T Mazari L Dermeche C MarchalRoch C Rabia
Publish Date: 2014/11/05
Volume: 145, Issue: 2, Pages: 569-575
Abstract
Two H3−2x Ni x PMo12O40 and NH43−2x Ni x PMo12O40 Keggin type heteroploysalts series x 025–15 were synthesized and characterized by IR spectroscopy XR diffraction and thermal analysis TG Their catalytic properties were studied in the oxidation reaction of cylohexanone and cyclohexanone/cyclohexanol mixture to adipic acid in presence of hydrogen peroxide and in absence of solvent The effects of catalyst/substrate molar ratios and heteropolysalt composition on AA yields were examined TG analysis allowed to confirm the x value Obtained catalytic results showed that both salts series are efficient for oxidation of cylohexanone and cyclohexanone/cyclohexanol mixture Adipic acid yield achieved 45 in the cyclohexanone oxidation in presence of NH405Ni125PMo12O40 with a catalyst/substrate molar ratio of 10−3
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