Kaifeng Lin

Catalytic epoxidation of styrene by molecular oxygen over a novel catalyst of copper hydroxyphosphate Cu2(OH)PO4

Catalytic epoxidation of styrene by molecular oxygen over a novel copper hydroxyphosphate catalyst, Cu2(OH)PO4, was studied. Catalytic data show that the catalyst Cu2(OH)PO4 is very active, and the main products are benzaldehyde and styrene epoxide. Some important factors associated with the catalytic activity and selectivity have been investigated extensively.

Catalytic epoxidation of styrene over copper hydroxyphosphate Cu2(OH)PO4

Catalytic epoxidation of styrene with hydrogen peroxide over copper hydroxyphosphate Cu2(OH)PO4 was studied. Catalytic data shows that the catalyst Cu2(OH)PO4 is very active, and the main products are styrene epoxide and benzaldehyde, particlularly giving high selectivity for styrene epoxide. In contrast, over TS-1 a large amount of phenylacetaldehyde product is formed. Some important factors associated with the catalytic activity and selectivity are investigated extensively.

Ordered mesoporous titanosilicates with catalytically stable and active four-coordinated titanium sites

The stable ordered mesoporous titanosilicate (Ti-JLU-20) has been successfully synthesized from an assembly of mixed surfactants (fluorocarbon and triblock copolymer surfactants) with preformed titanosilicate zeolite precursors at high temperature (180-220 degrees C), and catalytic tests show that Ti-JLU-20 has highly stable and active four-coordinated titanium sites in oxidations.