Liquid-phase hydration of acrylonitrile to acrylamide over the copper-nickel alloy catalysts.
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概要
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The liquid-phase hydration of acrylonitrile to acrylamide has been examined over various metal catalysts at 75 °C. Five metal elements-Cu, Ag, Fe, Co, and Ni-showed the catalytic conversion of acrylonitrile. The Cu and Ag catalysts gave the acrylamide with a 100% selectivity, while the other metals, Fe, Co, and Ni, yielded three products: acrylamide, ethylene cyanohydrin, and bis(2-cyanoethyl) ether. The alloying of Cu and Ni led to an increase in the formation of acrylamide with keeping the high selectivity to acrylamide. Especially, Cu–Ni alloys, with a range of 20–70% Cu in their bulk composition, were much more active catalysts than Cu. The maximum yield of acrylamide was obtained on the Cu–Ni alloy catalysts was observed, although such a retardation occurred on the Cu catalyst surface. The maximum synergistic effect was observed over the alloy with the surface component ratio of Cu to Ni of 4; this effect was discussed.
- 公益社団法人 日本化学会の論文
著者
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Miura Hiroshi
Department Of Applied Chemistry Saitama University
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Matsuda Tsuneo
Department Of Applied Chemistry Faculty Of Engineering Saitama University
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Sugiyama Kazuo
Department of Chemical and Biological Engineering, Hachinohe National College of Technology, 16-1 Uwanotai, Tamonoki, Hachinohe, Aomori 039-1192, Japan
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Watanabe Yoshichika
Department of Applied Chemistry, Faculty of Engineering, Saitama University
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Ukai Yasunori
Department of Applied Chemistry, Faculty of Engineering, Saitama University
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Sugiyama Kazuo
Department of Applied Chemistry, Faculty of Engineering, Kinki University
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