DEACTIVATION OF H3PW12O40/TIO2 CATALYST USED IN THE PRODUCTION OF CAMPHENE


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Abstract

The deactivation of the H3PW12O40 (HPW) catalyst supported on TiO2 used in the isomerization reaction of a-pinene and its regeneration were studied. The regeneration of the deactivated catalyst was carried out with an air flow at 300 and 500°C, with an ozone-enriched oxygen flow at 150°C and by extraction with solvent and acid treatment. Only the last treatment permitted to recover its activity restoring it in 48% of its initial value.

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