Catalytic epoxidation of styrene by molecular oxygen over a novel copper hy
droxyphosphate catalyst, Cu-2(OH)PO4, was studied. Catalytic data show that
the catalyst Cu-2(OH)PO4 is very active, and the main products are benzald
ehyde and styrene epoxide. Some important factors associated with the catal
ytic activity and selectivity have been investigated extensively.