III International Conference

PP-II-158COPPER-CARBON CATALYST –PRODUCT OF COPPER ACETYLENIDEEXPLOSIVE DECOMPOSITIONZhitnev Yu.N., Tveritinova E.A., Lunin V.V.M.V. Lomonosov Moskow State University, Moscow, RussiaE-mail: zhitnev@kge.msu.ruThe catalytic properties of products of copper acetylenide explosive decomposition(Cu+C) have been investigated in simulated reaction of dehydration-dehydrogenation ofpropan-2-ol at 60 – 350 o C. An explosive decomposition of copper acetylenide led to theformation of small amorphous carbon granules and copper particles in it. It was shown, thatcondition of copper acetylenide explosive decomposition (on air or in vacuum) influenced theselectivity of propan-2-ol decomposition. The (Cu+C)-catalyst have revealed the highactivity (85 % conversion at 60 o C) and 100 % selectivity with regard to acetone.The copper containing catalysts are widely used both in industry and in preparativechemical synthesis. In contrast to silica and alumina, being used as support, carbon is stable toacid and base, that is essential for many chemical processes. The method of the «dry» onestagesinthesis of the copper containing catalyst on carbon support by initialisation of thecopper acetylenide explosive decomposition have been developed and realized in this work.The copper acetylenide explosive decomposition was initiated by means of heating on air(1) and by destruction in vacuum (2).The specific surface of system (Cu+C) (way 2), meashured by the nitrogen adsorbtion,was120 m 2 /g. The catalytic properties of (Cu+C) system were investigated by the pulsemicrocatalytic method in dehydration-dehydrohenation of propan-2-ol. The conversionproducts were determined with the help of gas chromatography detection.The (Cu+C) system, received by way (1), showed the catalytic activity in propan-2-oldecomposition at temperatures above 260 o C with the formation of propylene and acetone inpractically equal yields and the total reaction conversion was not higher, than 30 %.The (Cu+C)-system, received by a way (2), initiated the catalytic process already at 60 o Cwith 85 % alcohol conversion. Furthermore such type of catalysts provided 100 % selectivity456