| abstract |
The present invention comprises a transesterification catalyst selected from the group of alkali metal alkoxides, alkaline earth metal alkoxides and alkali metal hydroxides, and salt compounds, titanates, and non-salt compounds having a density of at least 0.9 g / ml. A catalyst system comprising at least one activator other than said transesterification catalyst, selected from the group, relates to the use for catalysis of transesterification reactions. |