Electrolytic process
AssigneeImperial Chemical Industries PLC
InventorKevin Thomas McAloon
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Abstract
An electrochemical cell having an anode and a cathode separated by a diaphragm wherein the diaphragm comprises a porous polymeric material containing units derived from tetrafluoroethylene, said material having a microstructure characterized by nodes interconnected by fibrils.
Claims17
In a method of operating an electrolytic cell in which an aqueous electrolyte containing an ionizable compound is electrolyzed by means of an anode and a cathode the improvement comprising separating the anode and cathode by a diaphragm which comprises a porous polymeric material containing units derived from tetrafluoroethylene and having a microstructure that exhibits nodes interconnected together by fibrils, said material including a non-removable filler which is chemically resistant to the liquors in the cell and which renders the material wettable by the liquors in the cell.
An electrochemical cell for the electrolysis of aqueous solutions of ionizable compounds having an anode and a cathode which are separated by a diaphragm, wherein the diaphragm comprises a porous polymer material which contains units derived from tetrafluoroethylene and which has a microstructure that exhibits nodes interconnected together by fibrils, said material including a non-removable filler which is chemically resistant to the liquors in the cell and which renders the material wettable by the liquors in the cell.
A diaphragm for use in electrochemical cells for the electrolysis of aqueous solutions of ionizable compounds comprising a porous polymeric material which contains units derived from tetrafluoroethylene and which has a microstructure that exhibits nodes interconnected by fibrils and which contains a non-removable filler chemically-resistant to the liquors in the cell and rendering the porous polymeric material wettable by the liquors, the non-removable filler having been added to the porous polymeric material after its formation.
Dependencies are inferred from the claim text.