Method for producing caustic soda and chlorine by means of electrolysis of sea water or other similar saltish water

Claim 1

A PROCESS FOR THE PRODUCTION OF CAUSTIC SODA AND CHLORINE BY THE ELECTROLYSIS OF SALINE WATER IN AN ELECTROLYTIC CELL, SAID ELECTROLYTIC CELL PARTITIONED INTO A CATHODIC COMPARTMENT AND AN ANODIC COMPARTMENT, SAID COMPARTMENTS PARTITIONED WITH AN ANION-PERMSELECTIVE MEMBRANE, WHICH COMPRISES FILLING THE ANODIC COMPARTMENT WITH A CONCENTRATED AQUEOUS SOLUTION OF METALLIC CHLORIDES, FILLING THE CATHODIC COMPARTMENT WITH SALINE WATER AND THEN RENEWING SAID SALINE WATER, SAID SALINE WATER BEING REMOVED OF HARMFUL COMPONENTS WHICH INTERFERE WITH ELEC-TROLYSIS, CONDUCTING ELECTROLYSIS OF THE CONCENTRATED AQUEOUS SOLUTION OF METALLIC CHLORIDE AND SAID SALINE WATER, REMOVING THE ANOLYTE FROM THE ELECTROLYTIC CELL DURING THE ELECTROLYSIS, AND RETURNING THE ANOLYTE TO THE ANODE COMPARTMENT OF THE ELECTROLYTIC CELL AFTER REMOVING THEREFROM 3-10 MOLS OF WATER PER ONE FARADAY OF CIRCULATED ELECTROLYSIS CURRENT.