Production process for propylene oxide production, and equipment therefor.

Production process for propylene oxide. Comprising: (1) a first reaction step of obtaining a first reaction mixture containing hydrogen peroxide by reaction of hydrogen and oxygen in a solvent in the presence of a palladium catalyst in a first reactor; (2) a second reaction step of obtaining a second reaction mixture containing propylene oxide from the reaction of the first reaction mixture and propylene in the presence of a titanium catalyst in a second reactor; and (3) a recycling step for returning the second reaction mixture to the first reactor, and the steps (1) to be repeated with (3).