Including the moleculoar sieve or the zeolite which possesses 8 membered-ring pore aperture structures, including new micro porous crystal Characteristic material which becomes and SAPO-34 which possesses

摘要

Including the moleculoar sieve or the zeolite which possesses 8 member ring pore opening structures like SAPO or aruminoshiriketozeoraito it becomes, hydrothermal stability being the micro porous crystal characteristic substance, under existing of vapor to 10 cubic measure percent in temperature to the 900 after the being disclosed over 1 - 16 hours, the surface area and the crystal characteristic substance which keeps at least 80% of micro pore cubic measures are disclosed. Same as the synthetic method of this substance, this also the method like SCR of NO _x in the waste gas which uses the crystal characteristic substance which is disclosed is disclosed.