METHOD FOR EPOXIDATION OF OLEFINS Russian patent published in 2008 - IPC C07D301/12 C07D303/04 

FIELD: chemical technology.

SUBSTANCE: invention relates to a method for continuous epoxidation of olefins with hydrogen peroxide in the presence of a heterogeneous catalyst accelerating the epoxidation reaction. Aqueous reaction mixture comprises the following components: (1) olefin; (2) hydrogen peroxide; (3) less 100 ppm of alkaline metals, alkaline-earth metals in ionogenic, complex or covalently bound form, as bases or base cations possessing pH value pk_B less 4.5, or their combination, and at least 100 ppm of bases or base cations possessing pH value pk_B at least 4.5, or their combination. Values in ppm are given as measure for the total mass of hydrogen peroxide in the reaction mixture.

EFFECT: improved method of reaction.

20 cl, 2 tbl, 14 ex