FeII FeII-SUBSTITUTED BETA-TYPE ZEOLITE PRODUCTION METHOD THEREFOR AND GAS ADSORBENT INCLUDING SAME AND NITRIC OXIDE AND HYDROCARBON REMOVAL METHOD

摘要

An object of the present invention is to provide a Fe (II) substituted β-type zeolite useful for catalytic removal of various gases, and a method for producing the same. In the Fe (II) substituted β-type zeolite of the present invention, the SiO ₂ / Al ₂ O ₃ ratio is 7 or more and less than 10, and is ion-exchanged with Fe (II) ions. The amount of Fe (II) supported is preferably 0.001 to 0.4 mmol / g based on Fe (II) substituted β-type zeolite. This Fe (II) substituted β-type zeolite disperses β-type zeolite having a SiO ₂ / Al ₂ O ₃ ratio of 7 or more and less than 10 in an aqueous solution of a divalent iron-soluble compound and stirs Fe (II) ions to the β-type zeolite. Properly prepared by the supporting method.