CATALYST COMPOSITION FREE FROM NOBLE METALS

摘要

The invention concerns a catalyst composition which is free from noble metal s and is obtained by: a) preparing an aqueous mixture which comprises: i) a sa lt of at least one base metal selected from elements having the atomic numbers 21 to 32, 39 to 42, 48 to 51, 57 to 75 and 81 to 83; ii) phosphate ions; and ii i) at least one nitrogen source; and b) concentrating the aqueous mixture produced and drying the resultant catalyst compound. The invention further concerns the preparation of this composition and its use in the production o f hydrogen peroxide and the epoxidation of olefins.