Patent ID: 6797247
Filing Date: 2004-09-28
Classification: B01D,B01J

Abstract:
A material for eliminating oxides of nitrogen from exhaust gases, from internal combustion engines, said material having a OMS2*2, OMS 2*3 or OMS 3*3 structure, and being formed from MO6 octahedra connected together such that the structure generates micropores in the form of channels, said octahedra comprising at least one element (M) selected from groups IIIB, IVB, VB, VIB, VIII, IB, IIB or IIIA of the periodic table and germanium, said octahedra excluding tin, said material further comprising at least one element (B) selected from the group consisting of alkali-metals, alkaline-earth metals, rare earth elements, transition metals and elements from groups IIIA, IVA of the periodic table.