| abstract |
The invention relates to a method for producingnEpoxides by epoxidation of olefinic compoundsnwith hydrogen peroxide in the presence of a titanium silicalitenas a catalyst.n n n According to the invention, a base is added directly or as a mixturenone or more feedstocks under pH control innentered the epoxidation reactor, being in the reaction mixturenor in the base material containing a pHnin the range from 4 to 9.5, in particular 5 to 9.5nand is maintained. One is preferrednaqueous-organic hydrogen peroxide solution with a pH valuenused in the range of 8 to 9 and the epoxidationncarried out on a fixed bed reactor. |