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- W2369592912 abstract "MWW structure molecular sieves with different Si/Al were prepared by dynamic hydrothermally method.The resulting solids were characterized by different techniques,such as XRD,N2 adsorption-desorption,NH3-TPD and FTIR.The effects of Si/Al on the structure and acidity of MWW structure molecular sieve were studied.XRD results indicate that MCM-22 zeolite would be prepared when the silicon to alumina ratio ranges from 17.5 to 30,and MCM-49 zeolite would be obtained when the silicon to alumina ratio ranges from 12.5 to 15.NH3-TPD and FTIR results reveal that both the total acid amounts and the B acid amounts decrease with the increment of Si/Al in zeolite.When the Si/Al of zeolite is range from 12.5 to 25,acid strength of zeolite keeps consistent.When the Si/Al of zeolite is above 30,acid strength becomes weaker." @default.
- W2369592912 created "2016-06-24" @default.
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- W2369592912 date "2013-01-01" @default.
- W2369592912 modified "2023-09-24" @default.
- W2369592912 title "Influence of Si to Al Ratio on the Structure and Acidity of MWW Structure Molecular Sieves" @default.
- W2369592912 hasPublicationYear "2013" @default.
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