Method of epoxidation of propene

摘要

Using propene in excess relative to hydrogen peroxide, continuously reacting the propene feed with hydrogen peroxide in the presence of an epoxidation catalyst in the reaction step to provide a liquid reaction mixture comprising unreacted propene (epoxidation reaction An additional safety measure caused by the presence of oxygen during the work-up of the liquid reaction mixture of is avoided by providing an oxygen depleted stripped liquid reaction mixture and strip gas stream by stripping the liquid reaction mixture from step a) with an inert gas. Selecting an amount of inert gas to provide an oxygen concentration in the strip gas stream in the range of 0.1 to 10% by weight, separating the unreacted propene from the strip gas stream and recycling it to the reaction step, And propene oxide from the stripped liquid reaction mixture. Epoxidation of propene, comprising the steps of: Li.