PURPOSE: To provide an industrially advantageous method for production of hydrogen peroxide, capable of producing high-concentration hydrogen peroxide at low cost by reducing the amount of used pure oxygen which is relatively expensive.
CONSTITUTION: This is a method for producing hydrogen peroxide by catalytically reacting hydrogen with oxygen in the presence of a catalyst in an aqueous medium. In this method, the reaction is carried out while controlling the concentration of oxygen in feed gas to 10 to 30vol.%, 20 to 50vol.% and 30 to 95vol.% in the case the concentration of hydrogen peroxide in the reactor is respectively <5wt.%, <10wt.% and ≥10wt.%. These conditions enable reduction of the amount of used pure oxygen while keeping the selectivity of hydrogen high.
ISHIUCHI MASAO
NAGASHIMA HIROMITSU
TOMITA TAKESHI
