| 摘要 |
<p>Aromatic carbonates can be prepared economically and efficiently by reacting an aromatic hydroxyl compound with carbon monoxide and oxygen in the presence of a catalyst which comprises a perovskitic composite oxide represented by the following general formula (1): M(1-x)M'xM''Oy (wherein M is a group IIIB metal; x is a number of 0 to 1; M' is a metal having an ionic radius of 0.90 Å or above; M'' is Mn, Cr, Co, Fe, Ni or Cu; and y is a number of 2.5 to 3.5) or formula (1'): L(1-x)L'xL''Oy (wherein L is a group IIA or IVA metal taking a divalent state in the form of an oxide; x is a number of 0 to 1; L' is a metal having an ionic radius of 0.90 Å or above; L'' is a group IVA, IVB or IIIB metal taking a tetravalent state in the form of an oxide; and y is a number of 2.5 to 3.5) and a palladium compound supported on the composite oxide and in which palladium accounts for 0.01 to 15 % by weight of the catalyst.</p> |
