Liquid phase transformation of alpha-pinene over Beta zeolites containing aluminium or boron, titanium and vanadium as lattice ions

Beta zeolites with different modules (SiO2/Al2O3) and containing B, Ti or V in lattice positions were synthesised by different methods and tested as catalysts in liquid phase transformation of alpha-pinene at 100 degrees C in a batch reactor. It was established that the hydrogen forms of Beta samples with a SiO2/Al2O3 module of about 55-66 and containing both micro- and mesopores displayed high catalytic activity in liquid phase isomerization of alpha-pinene. Samplas with boron, titanium or vanadium, as lattice ions possess insignificant catalytic activity. (c) 2004 Elsevier B.V. All rights reserved.