Preparation of ketones

Details Preparation of ketones Preparation of ketones

1985-10-18

1988-04-19

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568390, 568391, 568396, 568406, 568403, C07C 4545

Patent

active

047391227

ABSTRACT:
A process to produce Methyl Amyl Ketone heterogeneously via the cross-aldol condensation reaction between a C.sub.3 (isopropanol or acetone feed) and a C.sub.4 (butanol or butyraldehyde feed). The catalyst, hydrogen reduced copper oxide on gamma alumina, produces both high reactivity and long catalyst lifetimes. The catalyst is successfully regenerated. Efficiencies to MAK range from 50 to 80 wt. % and efficiencies to useful products range from 75 to 95 wt. % depending on the composition of the feed and temperature. Temperatures range from 200.degree. to 262.degree. C.
In general, this catalyst readily catalyzes the cross-aldol condensation reaction between aldehydes (or primary alcohols) and ketones (or secondary alcohols) to produce higher molecular weight ketones; likewise, this catalyst catalyzes the aldol condensation reaction between the same or different ketones to again produce higher molecular weight ketones.

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