| abstract |
The present invention relates to a novel method for oxidative esterification in the presence of a heterogeneous catalyst, and is generally used to directly react an aldehyde with an alcohol in the presence of an oxygen-containing gas to produce a corresponding ester. By this method, for example, ( Methacryl can be converted into methyl (meth) acrylate. The catalysts used for this purpose according to the invention are particularly noticeable for their high mechanical and chemical stability and good catalytic performance even for very long periods of time. This is particularly related to improvements in catalyst life, activity, and selectivity of prior art catalysts that lose their activity and / or selectivity relatively quickly under continuous operation even in media with small amounts of water content. This novel catalyst according to the invention is special in that it has titanium dioxide as the main component of the carrier material. |