Process for obtaining isophorone
AssigneeElf Atochem S.A.
InventorsRemy Teissier, Jacques Kervennal
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Abstract
The present invention relates to a process for obtaining isophorone from acetone, characterized in that the operation is carried out (i) in liquid phase in the presence of a magnesium aluminum double oxide of formula Mg.sub.1-x Al.sub.x O.sub.1+x or (ii) either in gaseous or liquid phase in the presence of a catalyst of general formula (I): (Mg.sup.2+).sub.1-x (Al.sup.3+).sub.x (OH.sup.-).sub.2 !.sup.x+ (OH.sup.-).sub.x !.sup.x- (H.sub.2 O).sub.n (I) with 0.20.ltoreq.x.ltoreq.0.33 and n<1.
Claims34
A process for obtaining isophorone from acetone, characterized in that the operation is carried out (i) in liquid phase in the presence of a magnesium aluminum double oxide of formula Mg.sub.1-x Al.sub.x O.sub.1+x or (ii) either in gaseous or liquid phase in the presence of a catalyst of general formula (I):
- (Mg.sup.2+).sub.1-x (Al.sup.3+).sub.x (OH.sup.-).sub.2 !.sup.x+ (OH.sup.-).sub.x !.sup.x- (H.sub.2 O).sub.n (I)
- with 0.20.ltoreq.x.ltoreq.0.33 and n<1.
A liquid phase process for obtaining isophorone from acetone which comprises:
- contacting the liquid acetone with a solid catalyst comprising a magnesium aluminum double oxide of formula
- Mg.sub.1-x Al.sub.x O.sub.1+x ;
- and
- recovering a product consisting essentially of isophorone, unreacted acetone and by-products;
- wherein 0.20.ltoreq.x.ltoreq.0.33.
A process for obtaining isophorone from acetone which comprises:
- contacting the acetone with a solid catalyst comprising a compound of general formula (I):
- (Mg.sup.2+).sub.1-x (Al.sup.3+).sub.x (OH.sup.-).sub.2 !.sup.x+ (OH.sup.-).sub.x !.sup.x- (H.sub.2 O).sub.n (I);
- and
- recovering a product consisting essentially of isophorone, unreacted acetone and by-products;
- wherein 0.20.ltoreq.x.ltoreq.0.33 and n<1.
Dependencies are inferred from the claim text.