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      Caracterização e propriedades catalíticas da zeolita HZSM5 modificada com nióbio Translated title: Characterization and catalytical properties of hzsm5 zeolite modified by niobium

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          Translated abstract

          HZSM5 zeolite was modified by exchanging proton by niobium (V). Several samples were obtained with various degrees of exchange. Pore volumes and acidity were measured to characterize these exchanged zeolites. Catalytic properties were evaluated with two reaction tests: m-xylene transformation and n-heptane cracking. The introduction of niobium on HZSM5 zeolite decreases the diffusion coefficient of 2-methyl-pentane and increases the zeolite acidity. The sample containing niobium are initially more active in cracking of n-heptane and m-xylene isomerization than HZSM5 alone.

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          Zeolite Molecular Sieves

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            Studies in Surface Sciences and Catalysis

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              The Chemical Thermo-dynamics of Organic Compounds

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                Author and article information

                Journal
                qn
                Química Nova
                Quím. Nova
                Sociedade Brasileira de Química (São Paulo, SP, Brazil )
                0100-4042
                1678-7064
                February 1997
                : 20
                : 1
                : 9-13
                Affiliations
                [01] Bauru SP orgnameUniversidade Estadual Paulista orgdiv1Departamento de Química
                [02] Poitiers Cedex orgnameURA CNRS 350 Catalyse en Chimie Organique France
                Article
                S0100-40421997000100003 S0100-4042(97)02000103
                9ef9553e-130c-4474-9a1d-c8eb023a8b75

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 18 April 1996
                : 11 March 1996
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 16, Pages: 5
                Product

                SciELO Brazil

                Categories
                Artigo

                niobium exchange,HZSM5 zeolite,acidity,pore volume
                niobium exchange, HZSM5 zeolite, acidity, pore volume

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