The determination of the effect of swelling and pillaring of hydrous crystalline titanates, labeled as the Types 3, 4 and 5, and hydrous crystalline silicon titanates, labeled as TAM-7 and 8, on their physical and catalytic properties was the main objective of this research. The synthesis of these layered materials had been reported previously by Anthony and Dosch (1 990) and Anthony et al. (I 992). Prior to scaling the synthesis from 3 grams to 100 grams batches for characterization purposes, the effect of the synthesis conditions was also studied by varying the reaction temperature and time. These titanates were found to be very sensitive to the synthesis conditions. Catalysts were characterized by atomic adsorption, X-Ray diffraction, sorption measurements, thermal gravimetric analysis and differential thermal analysis. By swelling and pillaring, the interlayer distance was increased up to 2.6 nm prior to calcination at 500 'C. Although pillaring the titanates, by employing n-alkylanline and inorganic compounds, did improve the catalytic activity and the stability of the titanates. the structures changed substantially when calcined at 500 'C for 24 hours.
Nge, Renita (1994). Synthesis and characterization of new cystalline titanates. Master's thesis, Texas A&M University.
Available electronically from https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1994 -THESIS -N576.