Process for the preparation of benzyl alcohol
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United States of America Patent
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-
Dec 4, 2001
Grant Date -
Aug 16, 2001
app pub date -
Dec 18, 1998
filing date -
Dec 18, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process for the preparation of benzyl alcohol via hydrolysis of a benzyl ester with water in the liquid phase, the hydrolysis being carried out in the absence of a strong acid and a base at a temperature between 40.degree. C. and 320.degree. C. The benzyl ester to be hydrolyzed can be chosen from the group comprising benzyl formiate, benzyl propionate, benzyl acetate and benzyl benzoate. A weak acid may optionally be added to the reaction mixture to be hydrolyzed. After the hydrolysis the reaction mixture is preferably cooled to a temperature between 80.degree. C. and 180.degree. C. so that a phase separation takes place. Both the organic phase and the aqueous phase can be upgraded. As such, benzyl alcohol can be obtained with a high overall yield and a purity of more than 98%.
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