Electrochemical process and reactor

Process for the electrochemical production of hydrogen peroxide in an electrochemical cell comprising:

• producing H30 cations at an anode, producing HO2− anions at a cathode, transporting said H+ cations through a cation exchange membrane into a compartment of said electrochemical cell, transporting said HO2− anions through an anion exchange membrane into said compartment, wherein hydrogen peroxide is formed in said compartment, and withdrawing a hydrogen peroxide solution with a concentration of at least 50 g H2O2/1 through an outlet from said compartment, wherein said compartment comprises a solid ion-conductive material, wherein water molecules migrate with said ions through the anion exchange membrane and/or cation exchange membrane due to electro osmosis drag, and wherein all water is supplied into the compartment through the membranes.