Method for producing ketones
AssigneeChisso Corporation
InventorsTakehiko Okamoto, Tamihiro Ohashi, Isao Koga
Life of this patent
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Abstract
Ketones are prepared with a high yield and a prolonged catalyst life, by reacting an aldehyde selected from the group consisting of straight chain or branched chain aliphatic aldehydes having a carbon number of 4-10 (inclusive) and aromatic aldehydes represented by the general formula of ##SPC1## Wherein n is 0-5 with a monocarboxylic acid selected from the group consisting of acetic acid and propionic acid, at a temperature of 200.degree.-600.degree.C, in the presence of a catalyst of zirconium oxide alone or a mixture of zirconium oxide and at least one kind of the metal oxide selected from the group consisting of alkali metal oxides and alkaline earth metal oxides.
Claims11
A method for producing ketones which comprises reacting an aldehyde selected from the group consisting of straight chain or branched chain aliphatic aldehydes having a carbon atom number of 4 to 10 (inclusive) with a monocarboxylic acid selected from the group consisting of acetic acid and propionic acid in the presence of water and zirconium oxide at a temperature in the range of 200.degree. to 600.degree.C.
A method for producing ketones which comprises reacting an aldehyde selected from the group consisting of straight chain or branched chain aliphatic aldehydes having a carbon atom number of 4 to 10 (inclusive) with a monocarboxylic acid selected from the group consisting of acetic acid and propionic acid in the presence of water and a mixture of 99.5 to 90% by weight of zirconium oxide and 0.5 to 10% by weight of at least one metal oxide selected from the group consisting of alkali metal oxides and alkaline earth metal oxides, at a temperature in the range of 200.degree. to 600.degree.C.
Dependencies are inferred from the claim text.