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Kinetics of the alkylation of phenol with methanol over catalysts derived from hydrotalcite-like anionic clays

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Abstract

Vapor phase alkylation of phenol with methanol was carried out over catalysts derived from a series of hydrotalcite (HT)-like compounds of the form M(II)Al-HT; where M(II)=Mg, Mn, Co, Ni, Cu and Zn with M(II)/Al atomic ratios of2–5. The kinetic parameters such as rate constant (k), apparent activation energy (Ea) and Arrhenius frequency factor (Ao) for the disappearance of phenol were evaluated employing a power law equation assuming pseudo-first order kinetics. The kinetic parameters were found to be in good agreement with phenol conversion. The existence of the compensation effect between Ea and ln Ao was tested.

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  1. Department of Chemistry, Indian Institute of Technology, 600 036, Madras, India

    S. Velu & C. S. Swamy

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  1. S. Velu
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  2. C. S. Swamy
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Velu, S., Swamy, C.S. Kinetics of the alkylation of phenol with methanol over catalysts derived from hydrotalcite-like anionic clays. React Kinet Catal Lett 62, 339–346 (1997). https://doi.org/10.1007/BF02475473

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  • DOI: https://doi.org/10.1007/BF02475473

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