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Effects of raw materials and preparation methods of catalysts on the selective hydrogenation of ethyl phenylacetate
Author(s) -
Ishii Kazuaki,
Mizukami Fujio,
Niwa Shuichi,
Toba Makoto,
Ushijima Hirobumi,
Sato Takami
Publication year - 1996
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02523920
Subject(s) - catalysis , ruthenium , tin , yield (engineering) , raw material , distilled water , chloride , chemistry , phenylacetate , selectivity , alkali metal , nuclear chemistry , inorganic chemistry , organic chemistry , materials science , metallurgy , chromatography , biochemistry
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.