ACID OXIDE WITH MICRO AND MESOPOROUS CHARACTERISTICS: ITQ-36

摘要

The invention relates to a microporous cristalline material with a characteristic X ray diffractogramme, comprised of oxigen tetrahedra and a metal (T<+4> and T<+3>) with the possibility of introducing superficial acidity produced by the substitution in the network of certain cations T<+4> by cations T<+3>, resulting in a structural charge deficiency which can be compensated by protons, Brönsted acidity, and/or high charge-reduced ratio cations, Lewis acidity. The preparation method is based on the synthesis of a gel, its hydrothermal treatment in controlled conditions, and the treatment of the laminar material resulting in a solution of an organic compound, preferably a long hydrocarbon chain containing a proton acceptor group. This swollen material is subjected to a specific treatment for the formation of interlaminar pillars of polymer oxides in order to obtain a pillared material which maintains the separation between the laminas, even after calcination.