Patent ID: 6046366
Filing Date: 2000-04-04
Classification: B01J,C07C

Abstract:
In a process comprising reacting acetone by basic heterogeous catalysis to obtain diacetone alcohol, the improvement wherein the catalyst is a compound with a hydrotalcite structure of the formula:[M(II).sub.1-x M(III).sub.x (OH).sub.2-x ].mH.sub.2 O (I)in which M(II) represents at least one divalent cation chosen from the group consisting of nickel, zinc, cobalt, and magnesium; M(III) represents aluminium, gallium, iron or chromium, with the exception that when M(II) is magnesium M(III) is not aluminium; x is between 0.20 and 0.33; and m.ltoreq.1, and said reacting is conducted at a temperature not higher than 10.degree. C.