New aluminosilicate and titanosilicate delaminated materials active for acid catalysis, and oxidation reactions using H2O2

A new material of zeolitic nature, ITQ-6, has been obtained by delamination of a layered precursor of ferrierite. XRD, Ar and N-2 adsorption, and Si-2 9 and Al-27 MAS NMR pyridine and 2,6-di-tert-butylpyridine adsorption show that a delaminated material with a very high external surface area has been produced. The silicoaluminate is stable upon calcination and presents stro ng acid sites catalytically active and highly accessible to bulky reactants . We have also obtained by direct synthesis the titanium silicate version o f the laminar precursor of ferrierite and ITQ-6. The Ti is demonstrated to be in framework positions, and in the case of the TiITQ-6 is active and sel ective in the epoxidation of I-hexene with H2O2 The TiITQ-6 is stable and r emains active upon repeated reaction-calcination processes.