Neste Oy

Neste Oyj

Lea Rintala

Kari Kulmala

Kjell Ankner

Kalevi Heinola

Leila Lahtinen

Vesa-Matti Lehtinen

Lars-Peter Lindfors

Lea Parkkinen

Hannele Hakanpaa-Laitinen

The present invention concerns a process for producing 2-butyl-2-ethyl-1,3-propanediol. According to the process, a reaction mixture is formed, containing 2-ethylhexanal and formaldehyde, into which an hydroxide compound is fed, whereby 2-ethylhexanal and formaldehyde are reacted to to produce 2-butyl-2-ethyl-1,3-propanediol. According to the invention, the hydroxide compound is incrementally fed into the reaction mixture. Preferably the hydroxide compound is fed at least at two input rates, in such a way that the heat production of the reaction between 2-ethylhexanal and formaldehyde immediately after each increase of the input rate of the hydroxide compound, is at least almost the same. The invention allows for the production of BEPD in a controlled and safe manner, with excellent yields.

Process for the production of 2-butyl-2-ethyl-1,3-propanediol

Process for the preparation of 2-ethyl-1,3-hexane diol

Process for the preparation of 2-n-butyl-2-ethyl-1,3-propane diol

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Porvoo, Finland

Lea Rintala