| 摘要 |
The invention relates to a process for the preparation of an oxirane compound by reacting an olefinic compound with an organic hydroperoxide by the use of a heterogeneous catalyst, which is essentially insoluble in the reaction mixture, said catalyst comprising, titanium in chemical combination with a solid silica and/or inorganic silicate characterized in that a catalyst is used obtainable by a) impregnating the silicium compound with a stream of gaseous titanium tetrachloride, b) calcining the obtained reaction product of step a), and c) hydrolysis of the product of step b). e |
