HETEROGENEOUS CATALYSTS FOR THE TRANSESTERIFICATION OF AROMATIC ALCOHOLS; AND METHODS OF MAKING AND USE THEREOF

摘要

Disclosed herein are new mixed metal oxide catalysts suitable as heterogeneous catalysts for catalyzing the transesterification process of aromatic alcohols with a dialkyl carbonate to form aromatic carbonates. The heterogeneous catalyst comprises a combination of two, three, four, or more oxides of Mo, V, Nb, Ce, Cu, Sn, or an element selected from Group IA or Group IIA of the periodic table.

主权项

1. A heterogeneous catalyst comprising a mixed metal oxide according to Formula (A)
MoaVbNbcQdOx   (A) wherein Q is Ce, Cu, Sn, an element selected from Group IA of the periodic table, or an element selected from Group IIA of the periodic table, a is 0 to about 20, b is 0 to about 20, c is 0 to about 20, d is 0 to about 20, and x is stoichiometrically required amount of oxygen to balance the metals, wherein at least two of a, b, c, and d independently is greater than 0, and with the proviso that Formula (A) excludes CuV2O6, Cu2V2O7, MoO3—V2O5, and Nb2O5—V2O3.