Process of carrying out electrochemically electrolysis

Claim 1

IN THE METHOD FOR THE PRODUCTION OF ACID AND BASE SOLUTION FROM A SALT SOLUTION IN A SYSTEM COMPRISING TWO ELECTRODES AND A PLURALITY OF UNITS, EACH UNIT COMPRISING AN ANION-EXCHANGE MEMBRANE, AN ACID-BASE DOUBLE MEMBRANE AND A CATION-EXCHANGE MEMBRANE, AT LEAST ONE OF SAID CATION-EXCHANGE MEMBRANE AND SAID ANION EXCHANGE MEMBRANE BEING A POROUS ION-EXCHANGE MEMBRANE, AND SAID ACID-BASE DOUBLE MEMBRANE BEING COMPOSED OF A CATION-EXCHANGE MEMBRANE AND AN ANION EXCHANGE MEMBRANE, WITH SAID POROUS ION-EXCHANGE MEMBRANE BEING FORMED OF ION-EXCHANGE RESINAND HAVING UNIFORMLY DISTRIBUTED CAPILLIARIES EXTENDING THERETHROUGH, THE VOIDAGE AND WATER PERMEABILITY OF SAID POROUS ION-EXCHANGE MEMBRANE BEING, RESPECTIVELY, 1-40% AND 10-10,000 CC./DM.2 HR. M. OF WATER HEAD,THE ANION EXCHANGE MEMBRANE, THE CATION EXCHANGE MEMBRANE SIDE OF SAID ACIDBASE DOUBLE MEMBRANE, THE ANION EXCHANGE MEMBRANE SIDE OF SAID ACID-BASE DOUBLE MEMBRANE AND THE CATION EXCHANGE MEMBRANE BEING SUCCESSIVELY ARRANGED FROM THE CATHODE SIDE, AND AN ACID COMPARTMENT BEING FORMED BETWEEN THE ANION EXCHANGE MEMBRANE AND THE ACID-BASE DOUBLE MEMBRANE, A BASE COMPARTMENT BEING FORMED BETWEEN THE AICD-BASE DOUBLE MEMBRANE AND THE CATION EXCHANGE MEMBRANE, AND A SALT COMPARTMENT BEING FORMED BETWEEN THE CATION EXCHANGE MEMBRANE AND THE ANION EXCHANGE MEMBRANE IN EACH UNIT, THESTEPS WHICH COMPRISE, INTRODUCING SALT SOLUTION INTO THE SALT COMPARTMENTS IN THE SYSTEM, PASSING DIRECT ELECTRIC CURRENT THROUGH SAID COMPARTMENTS AND MEMBRANES, PASSING SALT SOLUTION THROUGH THE POROUS ION EXCHANGE MEMBRANE FROM THE SALT COMPARTMENT SELECTIVELY INTO THE ACID AND THE BASE COMPARTMENTS, AND WITHDRAWING ACID SOLUTION FROM THE ACID COMPARTMENT AND BASE SOLUTION FROMTHE BASE COMPARTMENT IN EACH UNIT.