2000 ion exchange, zeolites, molecular sieves, crown ethers, clays

ion exchange, zeolites, molecular sieves, crown ethers, claysV 1350

50 - 227Formation of Uniform Mesopores in ZSM-5 Zeolite Through Treat-ment in Alkaline Solution. — Treatment of zeolite ZSM-5 with 0.2 Maqueous NaOH solution at 353 K for 300 min leads to the formation of mesoporeswhose size is almost uniform without destruction of the microporous structureand the crystallinity. — (OGURA, MASARU; SHINOMIYA, SHIN-YA;TATENO, JUNKO; NARA, YASUTO; KIKUCHI, EIICHI; MATSUKATA,MASAHIKO; Chem. Lett. (2000) 8, 882-883; Dep. Appl. Chem., Sch. Sci.Eng., Waseda Univ., Shinjuku, Tokyo 169, Japan; EN)

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