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Gas phase reactions of acetaldehyde and formaldehyde in the presence of solid catalysts containing fluorine

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Abstract

Vapours of acetaldehyde and formaldehyde were passed over silica-alumina catalysts. The catalysts were obtained by soaking silica-alumina with aqueous hydrofluoric acid, the composition of silica-alumina was 75% SiO2, 25% Al2O3. The main products of the reaction were acrolein acetone and propionaldehyde. Also, small amounts of methylethylketone were found in the reaction mixture. It is suggested that the surface of the catalysts studied contains both donor and acceptor sites and also free radical centers.

Abstract

Пары ацетальдегида и формальдегида пропускались над кремне-алюминиевыми катализаторами. Катализаторы были получены пропитыванием окисей кремния и алюминия водным раствором НР; состав катализатора был 75% SiO2 и 25% Al2O3.

Главными продуктами реакции были акролеин, ацетон и пропиональдегид. Небольшие количества метилэтилкетона были также обнаружены. Полагается, что роверхность изученных катализаторов содержит и донорные и акцепторные центры, а также свободно-радикальные центры.

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Authors and Affiliations

  1. Institute of Organic Chemistry and Technology of the Warsaw Technical University, ul. Koszykowa 75, Warsaw

    St. Malinowski & W. J. Palion

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  1. St. Malinowski
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  2. W. J. Palion
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St. Malinowski, Palion, W.J. Gas phase reactions of acetaldehyde and formaldehyde in the presence of solid catalysts containing fluorine. React Kinet Catal Lett 1, 73–78 (1974). https://doi.org/10.1007/BF02075124

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  • DOI: https://doi.org/10.1007/BF02075124

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