Chromium-substituted aluminophosphates were synthesized and characterized. Chromium-aluminophosphoates (CrAPO-5 and CrAPO-11) catalyze the oxidn. of ethylbenzene, p-ethyltoluene, n-propylbenzene, n-butylbenzene, diphenylmethane, p-ethylanisole, and primary, secondary benzylic alcs. to the corresponding ketones or acids with TBHP at 80-100 DegC. The main parameters affecting reaction rates are competitive adsorption and diffusion. The activity of used CrAPO-5 is completely recovered by recalcination at 500 DegC. Oxidn. of 4-methoxybenzyl alc. gave 4-methoxybenzoic acid (100% conversion of reactant; 87% selectivity toward product).
|Name||Studies in Surface Science and Catalysis|
|Conference||conference; IZC: International Zeolite Conference ; 10 (Garmisch-Partenkirchen) : 1994.07.17-22; 1994-07-17; 1994-07-22|
|Period||17/07/94 → 22/07/94|
|Other||IZC: International Zeolite Conference ; 10 (Garmisch-Partenkirchen) : 1994.07.17-22|