Patent ID: 7799225

Claim:
A process for separation of hydrogen peroxide from a working solution comprising the following steps: providing a liquid-liquid membrane contactor assisted extraction system, the membrane contactor assisted extraction system having a porous membrane with a working solution side and an extractant side; providing an extractant, wherein the extractant is water, providing a working solution, wherein the working solution comprises dissolved hydrogen peroxide and at least one organic solvent; wetting the membrane with the extractant or working solution wherein a liquid-liquid interface (contact) is established between the working solution and extractant in the membrane pores; streaming the working solution along the working solution side of the membrane contactor; and streaming the extractant along the extractant side of the membrane contactor; and, optionally purifying the extractant permeate; wherein at least a portion of the dissolved hydrogen peroxide is extracted from the working solution across the membrane into the extractant forming an extractant permeate.