Niobium containing aluminophosphate materials with AEL structure were prepared by the hydrothermal method. The chemical composition of the hydrogel was: 1 DIPA: 1 Al2O3: (1-x) P2O5: x Nb2O5: 80 H2O, with x=0.025, 0.050, 0.075 and 0.100. The crystallization was carried out at temperature of 170 degreesC for 72 h. The materials obtained were characterized by XRF. DRX, FTIR, TG and measurements of acidity. The characterization of the catalytic active sites were carried out in the isopropanol dehydration at temperature of 400 degreesC, and WHSV of 1.6, 3.2, 4.8, 6.4. and 8.0 h(-1). The samples showed good catalytic activity with selectivity to propene.