C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 29/149 (2006.01) B01J 23/76 (2006.01) C07C 31/20 (2006.01) C08J 11/16 (2006.01)
Patent
CA 2755293
The invention relates to a method for the hydrogenation of oligo- and/or polyesters which can be obtained by the esterification of a dicarboxylic acid solution with a diol or diol mixture, the hydrogenation being carried out in the presence of a catalyst, the precursor of said catalyst containing copper oxide, aluminum oxide and at least one oxide of lanthanum, iron, tungs-ten, molybdenum, titanium or zirconium. The invention also relates to a method for producing 1,6-hexanediol by the catalytic hy-drogenation of ester mixtures which contain oligo- and polyesters of the adipic acid and 6- hydroxycaproic acid as the main components and which can be obtained by the esterification of a dicarboxylic acid solution with diols and especially 1,6-hexanediol or diol mixtures.
L'invention concerne un procédé d'hydrogénation d'oligoesters et/ou de polyesters, obtenus par estérification d'une solution d'acide dicarboxylique avec un diol ou un mélange de diols, l'hydrogénation étant effectuée en présence d'un catalyseur dont le précurseur contient de l'oxyde de cuivre, de l'oxyde d'aluminium et au moins un oxyde de lanthane, de fer, de tungstène, de molybdène, de titane ou de zirconium. L'invention concerne également un procédé de production de 1,6-hexanediol par hydrogénation catalytiques de mélanges d'esters qui contiennent comme constituants principaux des oligoesters et des polyesters de l'acide adipique et de l'acide 6-hydroxycaproïque et qui sont obtenus par estérification d'une solution d'acide dicarboxylique avec des diols, en particulier avec du 1,6-hexanediol ou des mélanges de diols.
Abillard Olivier
Pinkos Rolf
Sirch Tilman
Tebben Gerd-Dieter
Tompers Rolf
Basf Se
Robic
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