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1 Polish Journal of Chemical Technology

1 2001

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Utilization of acohol factions from the poduction of clohexanone by ketonization

Klimkiewicz R., Biskupski A., Grabowska H., Teterycz H., Syper L., Rakoczy J.

Polish Journal of Chemical Technology

2001

Vol. 3, nr 3

10-12

The method of utilization of alcohol fraction containing mainly primary alcohols is proposed. The fraction is a waste product arising in the process of cyclohexanone manufacturing. Alcohols are converted into symmetrical and asymmetrical ketones. The reaction proceeds in a continuous manner in the gas phase at the temperature range of 330 - 450°C in a flow reactor with fixed bed containing Zr-Mg-Y-0 catalyst. After processing the initial fraction at the temperature of 420°C and with the load of lh exp -1, a ketone fraction containing mainly nonanone-5 (over 40%, which corresponds to 75% yield and 80% selectivity) was produced. Apart from nonanone-5 in the fraction were such ketones as heptanone-4, octanone-4, cyclohexanone and other; the total content of ketones in the obtained fraction was 58%.