Neste Chemical Oy

Esa Nummi

Jukka Hietala

Leila Lahtinen

Hannu Nousiainen

Lars Peter Lindfors

Erkki Paatero

Rami Haakana

The invention relates to a process for the preparation of polyvalent alcohols by hydrogenation of an aldehyde. According to the invention said aldehyde is obtained by aldolisation reaction of an aldehyde containing an &agr; hydrogen atom and having the formula R,CHO, or the mixture of said aldehyde with a second different aldehyde having the formula or R,CHO, wherein R,is selected from alkyl having 1-12 carbon atoms, cycloalkyl, aryl and aralkyl having 1-14 carbon atoms, and R,is selected from H, alkyl having 1-12 carbon atoms, cycloalkyl, aryl and aralkyl having 1-14 carbon atoms, said aldolisation being carried out in the presence of a weak base anion exchange resin, and the hydrogenation being carried out in the presence of a solvent and a hydrogenation catalyst.

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Lappeenranta, Finland

Esa Nummi