Patent ID: 7851320
Filing Date: 2010-12-14
Classification: B01J,C01B

Abstract:
1. A process for preparing a mesostructured aluminosilicate material comprising at least two spherical elementary particles, each of said spherical particles being constituted by a mesostructured matrix based on silicon oxide and aluminium oxide, having a pore size in the range 1.5 to 30 nm, a Si/Al molar ratio of at least 1, having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 μm, said process comprising a) mixing at least one surfactant, at least one aluminic precursor and at least one silicic precursor to form a solution; b) atomizing a solution obtained in a) in a chamber by spraying a vector gas into the chamber to produce spherical droplets with a diameter of less than 200 μm; c) drying said droplets and d) eliminating said surfactant to obtain a material with a mesostructured porosity.