| 摘要 |
FIELD: organic chemistry, chemical technology. ^ SUBSTANCE: invention proposes a method for preparing propylene oxide wherein (I) propene is subjected for conversion with hydrogen peroxide in the presence of methanol to propylene oxide to obtain a mixture (CI) containing propylene oxide, methanol, water and unreacted hydrogen peroxide; (II) from mixture (CI) mixture (CII) is removed that contains methanol, water and hydrogen peroxide to obtain mixture (Ca) containing propylene oxide; and (III) from mixture CII water is removed to obtain mixture (CIII) containing methanol and methyl formate. Invention provides enhancing yield of the end product and decreasing formation of by-side products. ^ EFFECT: improved preparing method. ^ 9 cl, 1 ex |
