Process for the preparation of 1,3- propanediol by the...

Details Process for the preparation of 1,3- propanediol by the... Process for the preparation of 1,3- propanediol by the...

C - Chemistry, Metallurgy

07

C

C07C 29/141 (2006.01)

Patent

CA 2079655

ABSTRACT OF THE DISCLOSURE A process for the preparation of 1,3-propanediol by the hydrogenation of hydroxypropionaldehyde (HPA) in aqueous solution on a formed carrier catalyst in a solid bed, the concentration of the HPA in the solution being from 5 to 100% by weight and hydrogenation being carried out at temperatures of from 30 to 180°C and hydrogen pressures of from 5 to 300 bar and at a pH of from 2.5 to 6.5, characterised in that the carrier catalyst consists of titanium oxide on which platinum is applied in a finely divided form in a quantity of from 0.1 to 5.0% by weight, based on the carrier.

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