FAUJASITE-BASED ZEOLITE AND METHOD FOR PRODUCING THE SAME

FAUJASITE-BASED ZEOLITE AND METHOD FOR PRODUCING THE SAME

To provide a faujasite-based zeolite that retains high crystallinity while having a large specific surface area for a mesopore region.SOLUTION: A faujasite-based zeolite is characterized by (a) a molar ratio of SiO2/Al2O3 of 10 or more and 200 or less, (b) a specific surface area 7-50nm of pores in...

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Bibliographische Detailangaben
Hauptverfasser: MITSUI TOMOHIRO, KAGAWA TOMOYASU, KITANO TAKEO, INAGI CHIZU
Format: Patent
Sprache:eng ; jpn
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Zusammenfassung:To provide a faujasite-based zeolite that retains high crystallinity while having a large specific surface area for a mesopore region.SOLUTION: A faujasite-based zeolite is characterized by (a) a molar ratio of SiO2/Al2O3 of 10 or more and 200 or less, (b) a specific surface area 7-50nm of pores in a region with pore diameters of 7 to 50 nm being 40 m2/g or more and 120 m2/g or less, (c) a percentage of the specific surface area7-50nm occupied in a specific surface area 2-200nm of pores in a region with pore diameters of 2 to 200 nm being 25% or more, and (d) a crystallinity of 0.65 or more.SELECTED DRAWING: None 【課題】メソ孔領域の比表面積が大きいものでありながら、結晶性を高く保持したフォージャサイト型ゼオライトを提供する。【解決手段】（ａ）ＳｉＯ２／Ａｌ２Ｏ３のモル比が１０以上かつ２００以下、（ｂ）細孔直径が７～５０ｎｍの領域にある細孔の比表面積7-50nmが４０ｍ２／ｇ以上かつ１２０ｍ２／ｇ以下、（ｃ）細孔直径が２～２００ｎｍの領域にある細孔の比表面積2-200nmに占める前記比表面積7-50nmの割合が２５％以上、（ｄ）結晶化度が０．６５以上、である、フォージャサイト型ゼオライト【選択図】なし