| abstract |
When producing fatty acid alkyl esters and / or glycerin by reacting fats and oils with alcohol, there is almost no elution of active metal components, and transesterification of glycerides contained in fats and oils and esterification of free fatty acids. By using a catalyst capable of exhibiting high activity in both of these reactions, it is possible to simplify or eliminate complicated steps such as a catalyst recovery step and to highly efficiently use fatty acid alkyls suitable for food and fuel applications. A method for producing an ester and / or glycerin and a catalyst used therefor are provided. A method for producing a fatty acid alkyl ester and / or glycerin comprising the step of bringing an oil and fat into contact with an alcohol in the presence of a catalyst, wherein the catalyst comprises a Group 4 and Group 5 metal element. A method for producing a fatty acid alkyl ester and / or glycerin comprising at least one metal element selected from the group as an essential component. [Selection figure] None |