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- W2075193836 abstract "For the study of the acidic character of layered perovskite oxide, HLaNb2O7 (HLa), the intercalation of water and alcohols was performed and further the HLa was used of dehydration of 1- and 2-butanol as a test reaction. The acidic properties of the HLa was greatly affected by the irreversible water in the interlayer removed in the temperature range of 350°C4̃00°C. In the presence of water, the intercalation of hydrophilic nalcohols having carbon number below 5 occurred. Dehydration activity of 2-butanol was higher than 1-butanol and produced only n-butenes. On the other hand, butenes and n-butylaldehyde were produced in the reaction of 1-butanol, especially the formation of the latter was predominant at the lower temperature as 200°C2̃50°C. With raising the heat-treatment temperature of the catalyst its acidity decreased and was almost lost at 500°C. However, the selectivity to n-butylaldehyde increased, indicating that the acidity did not concern to the nbutylaldehyde formation. The reaction behaviors of 1-and 2-butanol on the HLa catalyst were discussed." @default.
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- W2075193836 date "1993-05-03" @default.
- W2075193836 modified "2023-09-23" @default.
- W2075193836 title "Intercalation study and catalysis by lanthanum niobium oxides" @default.
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- W2075193836 doi "https://doi.org/10.1016/0920-5861(93)80085-f" @default.
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