Core Technologies

Aldolisation

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Aldolisation

Aldolisation is a key part of the oxo alcohols process where two aldehydes combine to produce a larger aldehyde which is then converted to an alcohol by hydrogenation.

Aldolisation in the oxo alcohols process

2-ethylhexanol (2-EH) is produced from normal-butyraldehyde in two reaction steps.

The first step is the aldolisation of normal-butyraldehyde to butyraldol and dehydration of butyraldol to produce 2-ethyl 3-propyl acrolein (EPA). The aldolisation and dehydration reactions are conducted in the presence of aqueous caustic soda at 120°C:

Aldolisation small equation1

Aldolisation small equation2

In the Davy oxo alcohols process, a hydroformylation step then follows to yield product alcohol.

Related Processes

We use our aldolisation technology in our oxo alcohols licensed process. Click on the link to find out more:


Related Processes

We use our aldolisation technology in our oxo alcohols licensed process. Click on the link to find out more: