FIELD: chemistry.
SUBSTANCE: disclosed is a continuous method of producing propylene oxide, comprising reacting propene with hydrogen peroxide in methanol solution in presence of a titanium silicalite-1 catalyst. According to invention, reaction feed comprising propene, methanol and hydrogen peroxide is introduced into a reactor, said reaction feed containing potassium cations (K+) and additionally phosphorus (P) in form of anions of at least one phosphorus oxyacid. Amount of K+ cations ranges from 110 to 190 micromol per mole of hydrogen peroxide, and molar ratio of K+ to P ranges from 0.75 to 1.0.
EFFECT: reduced process selectivity with respect to formation of by-products.
22 cl, 1 dwg, 6 ex
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