Effects of raw materials and preparation methods of catalysts on the selective hydrogenation of ethyl phenylacetate
Journal of The American Oil Chemists Society(1996)
摘要
A ruthenium/tin/alumina catalyst was found to hydrogenate ethyl phenylacetate to 2-phenylethanol selectively with a high yield.
The optimum atomic ratio of ruthenium to tin was 1∶2, and the optimum metal content was about 5 and 11.75 wt% for ruthenium
and tin, respectively. The raw materials of the catalyst had a significant effect on the conversion and selectivity in the
catalytic hydrogenation. Chloride had a negative effect on catalytic activity. Washing the catalysts, which were prepared
from chloride materials, with distilled water or alkali solution had a positive effect upon catalyst activity. The catalyst
prepared from chloride-free raw materials performed the best, and the impregnation catalyst has a higher yield than the solgel
catalyst, suggesting that impregnation is a suitable procedure for this reaction.
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关键词
sol-gel.,ethyl-phenylacetate,2-phenylethanol,hydrogenation,impregna- tion,ruthenium/tin/alumina,catalytic activity,raw materials
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