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Activation of CuSi and CuZnSnSi contact masses for the direct synthesis of methylchlorosilanes

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Abstract

The temperature-programmed-activation (TPA) of CuSi, CuSi(H) (prepared using CuCl and CuCl 2H2O, respectively), and CuSi copromoted with zinc and tin have been investigated. The main effect of promotion was to increase the activation temperature suggesting that zinc may inhibit the transfer of chlorine from CuCl to surface silicon atoms. The sample prepared using hydrated cuprous chloride initially exhibited reduced activity for the Direct Reaction relative to CuSi, apparently, due to oxidation of the contact mass surface inhibiting the formation of η-Cu3Si.

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Authors and Affiliations

  1. Department of Chemical and Biochemical Engineering, The University of Iowa, 52242, Iowa City, IA, (USA)

    T. J. Wessel & D. G. Rethwisch

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  1. T. J. Wessel
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  2. D. G. Rethwisch
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Wessel, T.J., Rethwisch, D.G. Activation of CuSi and CuZnSnSi contact masses for the direct synthesis of methylchlorosilanes. React Kinet Catal Lett 58, 7–12 (1996). https://doi.org/10.1007/BF02071098

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  • DOI: https://doi.org/10.1007/BF02071098

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