Upm-kymmene Oyj Corporation

Neste Chemical Oy

Outotec (finland) Oy

Erkki Paatero

Eero Ekman

Jukka Hietala

Leila Lahtinen

Hannu Nousiainen

Ulf Hotanen

Lars Peter Lindfors

Rami Haakana

Esa Nummi

Jarkko Helminen

Matti Hautala

Ari Karki

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.

Process for the preparation of polyvalent alcohols

Process for hydrogenating unsaturated plant-based compounds and

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Kauniainen, Finland

Erkki Paatero