Affordable Access

Publisher Website

Liquid-phase oxidation of cyclohexane to adipic acid catalysed by cobalt containing β-zeolites

Elsevier Science & Technology
DOI: 10.1016/s0167-2991(97)81019-1


Abstract Cobalt exchanged β-zeolites obtained by impregnation and solid state ion exchange and cobalt substituted β-zeolites obtained by incorporation of cobalt in the synthesis gel were studied towards the oxidation of cyclohexane into adipic acid. The Co-substituted β-zeolites were found to be effective catalysts for the oxidation of cyclohexane in acetic acid. In contrast, the use of Co-exchanged β-zeolites always led to inhibition of the oxidation. It was demonstrated that the catalytic activity came as a result of the dissolved cobalt in the reaction medium, while inhibition was ascribed to the accessible uncompensated aluminic sites of the zeolites.

There are no comments yet on this publication. Be the first to share your thoughts.