Electrolytic process for recovering by-products from industrial waste liquors

Claim 1

THE PROCESS OF TREATING LIQUOR CONTAINING SULPHURIC ACID AND FERROUS SULPHATE CONSISTING IN DIVIDING THE LIQUOR INTO TWO SEPARATE STREAMS, PASSING ONE STREAM THROUGH ONE SERIES OF CHAMBERS AND THE OTHER STREAM THROUGH ANOTHER SERIES OF CHAMBERS, MAINTAINING THE SEPARATION OF EACH SERIES FROM THE OTHER BY DIAPHRAGMS, IMPRESSING A POSITIVE ELECTRIC POTENTIAL ON THE CHAMBERS OF THE ONE SERIES, AND A NEGATIVE POTENTIAL ON THE CHAMBERS OF THE OTHER SERIES, SCRUBBING EACH OF SAID STREAMS SEPARATELY IN THE PRESENCE OF SULPHUR DIOXIDE, SUBJECTING EACH STEAM TO FURTHER ELECTROLYTIC ACTION, TREATING THE ONE STREAM FROM THE ONE SERIES OF CHAMBERS HAVING THE POSITIVE POTENTIAL DURING THE FURTHER ELECTROLYTIC ACTION WITH NASCENT HYDROGEN, TREATING THE OTHER STREAM WITH NASCENT OXYGEN DURING SAID FURTHER ELECTROLYTIC ACTION, TO FORM A PRECIPITATE OF HYDROLYZED IRON SULPHATE AND SULPHUR IN EACH STREAM, REMOVING SAID PRECIPITATE FROM EACH STREAM SEPARATELY, CONVERTING THE FERROUS SULPHATE REMAINING IN THE OTHER STREAM INTO AN INSOLUBLE SALT TO SEPARATE SAID INSOLUBLE SALT FROM THE SULPHURIC ACID IN SAID OTHER STREAM, AND BOILING THE REMAINDER OF THE FIRST STREAM TO CONCENTRATE THE ACID THEREIN.