Hydrochlorination of Acetylene Using Gold Catalysts: A Study of Catalyst Deactivation.-With a view to the importance of the title reaction in the industrial process for the production of vinyl chloride monomer, the effect of a range of parameters on the deactivation rate is discussed. In combination with 197Au Moessbauer spectroscopy and X-ray diffractometry deactivation mechanisms are investigated and it is shown that deposition of carbonaceous residues is a predominant process. -(NKOSI, B.; COVILLE, N. J.; HUTCHINGS, G. J.; ADAMS, M. D.; FRIEDL, J.; WAGNER, F. E.; J.

A novel high activity, carbon supported, gold catalyst for acetylene hydrochlorination which can be successfully reactivated by HCI treatment is reported.

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