Aktivierungsmethode für Titansilikalit und dessen Verwendung in Oxidationsverfahren mit Wasserstoffperoxid

摘要

A method is described for improving the catalytic performances of titanium silicalite having formula I: $wherein\; x\; ranges\; from\; 0.0001\; to\; 0.04\; by\; the\; activation\; of\; the\; catalyst\; (I)\; in\; an\; aqueous\; medium\; with\; hydrogen\; peroxide,\; in\; the\; presence\; of\; precursors\; of\; fluoride\; ions\; or\; anionic\; species\; containing\; fluorine.\; The\; activated\; catalyst\; (I)\; is\; preferably\; used\; in\; oxidation\; processes\; with\; hydrogen\; peroxide\; of\; organic\; substrates\; and,\; in\; particular,\; hydroxylation\; reactions\; of\; aromatic\; compounds,\; amoximation\; reactions\; of\; carbonyl\; compounds,\; epoxidation\; reactions\; of\; olefinic\; compounds\; and\; oxidation\; reactions\; of\; nitrogenated\; compounds.\mathop{\mathrm{image}}$