Patent ID: 6313358
Filing Date: 2001-11-06
Classification: B01J,C07C

Abstract:
A process for the preparation of hexanediol by hydrogenating dialkyl adipates or mixtures which contain a dialkyl adipate as the essential component and organic compounds as impurities, wherein, before the hydrogenation, the dialkyl adipates or the mixtures containing dialkyl adipates are passed at from 50 to 250.degree. C. and from 1 to 100 bar over copper catalysts which have a copper content, calculated as CuO, of from 0.5 to 80% by weight, a surface area of from 5 to 1500 m.sup.2 /g, a porosity of from 0.05 to 1.5 cm.sup.3 /g and a copper surface area of from 0.1 to 20 m.sup.2 /g, in order to remove the organic halogen compounds.