ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Catalysts for vinyl chloride. II. Increasing the activity of the mercuric chloride catalyst by the addition of inorganic acids. Effect of the carrier of the catalyst salt on the activity and the selectivity of the catalyst

J. Janda and A. Vanko

Research Institute for Acetylenchemistry, Nováky

Abstract: cf. C.A. 51, 7818b. In the synthesis of CH₂:CHCl from C₂H₂ and HCl, the activity of the HgCl₂ catalyst (I) is increased by the addn. of equimolar amts. of H₃PO₄, H₂SO₄, and HClO₄ to the HgCl₂ on active C. The increase in activity of I is dependent on the polarity of the acid and increases in the order H₃PO₄ < H₂SO₄ < HClO₄. The chem. nature of the mercuric salt does not affect the selectivity of I. The type of active C used for the prepn. of I does affect the activity as well as the selectivity. The higher the amts. of Fe and Zn in the active C, the higher the formation of higher-boiling by-products.

Full paper in Portable Document Format: 115a248.pdf (in Slovak)

Chemical Papers 11 (5) 248–258 (1957)