Abstract: Apparatus for producing chlorine gas comprising a plurality of separately housed electrolytic cells containing bimetallic electrodes electrically connected in series. Each electrolytic cell is divided into an anode and a cathode compartment separated by an ion permeable membrane which is impermeable to gases and water. Each cell housing contains passageways for simultaneously delivering a pure alkali metal chloride brine solution to the anode compartments and transporting chlorine gas produced at the anode and spent brine solution from the anode compartments. Passageways are also provided in each cell housing for delivering deionized water to the cathode compartments and conveying hydrogen gas produced at the cathode and an alkali metal hydroxide solution from the cathode chamber. Approporiate piping is provided for delivering brine solution and deionized water to the cell housing and conveying chlorine gas and spent brine and hydrogen gas and an alkali metal hydroxide solution from the cell housing.

Abstract: Apparatus for producing a chlorine gas or a hypochlorite compound comprising a housing, a plurality of carbon electrodes arranged in series, with electrodes being spaced to form chambers between adjacent electrodes and one or more hollow tubes extending through the electrodes for delivering a chloride salt brine solution to the chambers. Each chamber is divided into an anode compartment and a cathode compartment by a chloride ion permeable membrane. A fluid sealing ring or rings around the outside perimeter of each electrode and around each hollow tube separates the permeable membrane from each electrode thereby dividing each chamber into an anode compartment and a cathode compartment divided by the membrane. The salt solution is applied to a hollow tube and flows through apertures therein into each anode compartment. A negative D.C. current is supplied to the electrode on one end of the series of electrodes and a positive D.C.