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Study of the selectivity of a V2O5−ZrO2 catalyst for partial oxidation ofo-xylene at high temperatures

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Abstract

It has been established that at high temperatures (above 450°C) the V2O5−ZrO2 catalyst exhibits a higher selectivity in the oxidation ofo-xylene to phthalic anhydride than does the conventional V2O5−TiO2(a) catalyst. The catalyst selectivity is found to increase with respect to partial oxidation ofo-xylene, the valuable by-product maleic anhydride being obtained. Studies by different physicochemical methods have shown that V2O5−ZrO2 undergoes no significant phase and structural changes under high-temperature conditions.

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Authors and Affiliations

  1. Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    Lubomir Makedonski & Vladimir Blaskov

  2. Institute of Chemical Engineering, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    Valentin Nikolov

  3. Institute of Pedagogy, Shoumen, Bulgaria

    Nikolai Nikolov

Authors
  1. Lubomir Makedonski
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  2. Valentin Nikolov
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  3. Nikolai Nikolov
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  4. Vladimir Blaskov
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Makedonski, L., Nikolov, V., Nikolov, N. et al. Study of the selectivity of a V2O5−ZrO2 catalyst for partial oxidation ofo-xylene at high temperatures. React Kinet Catal Lett 66, 237–243 (1999). https://doi.org/10.1007/BF02475796

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  • DOI: https://doi.org/10.1007/BF02475796

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