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The effect of pre-sulfiding of catalysts for the vapour phase catalytic synthesis of thiophenes

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Abstract

A study of catalyst pre-sulfiding for the synthesis of 3-methylthiophene from 2-methylbutanol and carbon disulfide over potassium-promoted chromia–alumina has been performed. Pretreatment with CS2 results in enhancements in 3MT yield and catalyst lifetime. The benefits observed are ascribed to a combination of enhanced Cr2S3 formation and poisoning of sites responsible for side reactions which limit selectivity and result in the formation of deactivating by-products.

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Authors and Affiliations

  1. School of Chemistry, Queen’s University of Belfast, Belfast, BT9 5AG, Northern Ireland, UK

    Barry W.L. Southward

  2. Department of Chemistry, University of Wales at Cardiff, PO Box 912, Cardiff, CF1 3TB, Wales, UK

    Graham J. Hutchings

  3. Nottingham Trent University, Burton Street, Nottingham, NG1 4BU, UK

    Richard W. Joyner

  4. Laporte Fine Organics, Four Ashes, Wolverhampton, WV10 7BP, UK

    Russell A. Stewart

Authors
  1. Barry W.L. Southward
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  2. Graham J. Hutchings
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  3. Richard W. Joyner
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  4. Russell A. Stewart
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Southward, B.W., Hutchings, G.J., Joyner, R.W. et al. The effect of pre-sulfiding of catalysts for the vapour phase catalytic synthesis of thiophenes. Catalysis Letters 68, 75–77 (2000). https://doi.org/10.1023/A:1019079319267

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  • DOI: https://doi.org/10.1023/A:1019079319267

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