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Patent US3149061A successfully refreshed from Google Patents.
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US3149061A Expired / Lapsed US ⏱️ 0.0 years remaining

Removal of dissolved salts and silica from liquids

Assignee: Veolia WTS Systems USA Inc
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Filing: 1962-02-19
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Granted: 1964-09-15
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Expires: 1982-02-19
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Abstract

No abstract record available.

Inventors

  • 👤 Edgardo J Parsi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 21:31
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/48; B01J; B01J47/00; B01J47/12; B01D2311/00; B01D2311/26; B01D2311/2623; C; C02; C02F; C02F1/00; C02F1/46; C02F1/4604; C02F1/469

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 269 words
A PROCESS FOR THE REMOVAL OF STRONGLY IONIZED ELECTROLYTES AND WEALKY IONIZED ACIDS FROM AQUEOUS SOLUTIONS CONTAINING A MIXTURE OF THE SAME, THE PROCESS COMPRISING SUBJECTING THE SOLUTIONS OF ELECTRODEIONIZATION SUCCESSIVELY IN TWO SEPARATE ELECTRODEIONIZATION UNITS, EACH UNIT COMPRISED OF A CATHODE CHAMBER AT ONE TERMINAL END, AN ANODE CHAMBER AT THE OPPOSITE TERMINAL END, SAID CHAMBERS CONTAINING A CATHODE AND AN ANODE RESPECTIVELY, THE BODY OF EACH UNIT AS DEFINED BY THE TERMINATING ELECTRODES COMPRISING A PLURALITY OF ALTERNATING DILUTING AND CONCENTRATING CHAMBERS DEFINED BY ALTERNATING CATION AND ANION ION-EXCHANGE PERMEABLE MEMBRANES, AT LEAST THE DILUTING CHAMBERS OF THE FIRST ELECTRODEIONIZATION UNIT CONTAINING A FLUID PERMEABE FILLER OF ION-EXCHANGE MATERIAL, SAID MATERIAL OF SAID DILUTING CHAMBERS COMPRISING A MIXTURE OF STRONG BASE ANION EXCHANGER AND STRONG ACID CATION EXCHANGER, AT LEAST THE DILUTING CHAMBERS OF THE SECOND ELECTRODEIONIZATION UNIT CONTAINING A FLUID-PERMEABLE FILLER OF ION-EXCHANGE MATERIAL, SAID MATERIAL OF SAID DILUTING CHAMBERS COMPRISING A STRONG BASE ANION EXCHANGE PASSING THE FEED SOLUTION INTO THE DILUTING CHAMBERS OF THE FIRST UNIT TO SUBSTANTIALLY REMOVE THE STRONGLY IONIZED ELECTROLYTES THEREFROM, PASSING THE EFFLUENT FROM SAID CHAMBERS INTO THE DILUTING CHAMBERS OF THE SECOND UNIT, PASSING A SECOND FEED SOLUTION INTO THE CONCENTRATING AND ELECTRODE CHAMBERS OF THE FIRST UNIT, PASSING THE FFLUENT OF SAID CHAMBERS INTO THE CONCENTRATING AND ELECTRODE CHAMBERS RESPECTIVELY OF THE SECOND UNIT, PASSING A DIRECT CURRENT POTENTIAL TRANSVERSELY ACROSS THE BODY OF EACH OF SAID UNITS, SAID CURRENT BEING SUFFICIENT TO DISSOCIATE WATER INTO HYDROGEN AND HYDROXYL IONS WITHIN THE DILUTING CHAMBERS, AND WITHDRAWING SEPARATE STREAMS OF DEIONIZED LIQUID AND ION-ENRICHED LIQUID FROM SAID SECOND UNIT.
Claim 2
Dependent Claim 269 words
A PROCESS FOR THE REMOVAL OF STRONGLY IONIZED ELECTROLYTES AND WEALKY IONIZED ACIDS FROM AQUEOUS SOLUTIONS CONTAINING A MIXTURE OF THE SAME, THE PROCESS COMPRISING SUBJECTING THE SOLUTIONS OF ELECTRODEIONIZATION SUCCESSIVELY IN TWO SEPARATE ELECTRODEIONIZATION UNITS, EACH UNIT COMPRISED OF A CATHODE CHAMBER AT ONE TERMINAL END, AN ANODE CHAMBER AT THE OPPOSITE TERMINAL END, SAID CHAMBERS CONTAINING A CATHODE AND AN ANODE RESPECTIVELY, THE BODY OF EACH UNIT AS DEFINED BY THE TERMINATING ELECTRODES COMPRISING A PLURALITY OF ALTERNATING DILUTING AND CONCENTRATING CHAMBERS DEFINED BY ALTERNATING CATION AND ANION ION-EXCHANGE PERMEABLE MEMBRANES, AT LEAST THE DILUTING CHAMBERS OF THE FIRST ELECTRODEIONIZATION UNIT CONTAINING A FLUID PERMEABE FILLER OF ION-EXCHANGE MATERIAL, SAID MATERIAL OF SAID DILUTING CHAMBERS COMPRISING A MIXTURE OF STRONG BASE ANION EXCHANGER AND STRONG ACID CATION EXCHANGER, AT LEAST THE DILUTING CHAMBERS OF THE SECOND ELECTRODEIONIZATION UNIT CONTAINING A FLUID-PERMEABLE FILLER OF ION-EXCHANGE MATERIAL, SAID MATERIAL OF SAID DILUTING CHAMBERS COMPRISING A STRONG BASE ANION EXCHANGE PASSING THE FEED SOLUTION INTO THE DILUTING CHAMBERS OF THE FIRST UNIT TO SUBSTANTIALLY REMOVE THE STRONGLY IONIZED ELECTROLYTES THEREFROM, PASSING THE EFFLUENT FROM SAID CHAMBERS INTO THE DILUTING CHAMBERS OF THE SECOND UNIT, PASSING A SECOND FEED SOLUTION INTO THE CONCENTRATING AND ELECTRODE CHAMBERS OF THE FIRST UNIT, PASSING THE FFLUENT OF SAID CHAMBERS INTO THE CONCENTRATING AND ELECTRODE CHAMBERS RESPECTIVELY OF THE SECOND UNIT, PASSING A DIRECT CURRENT POTENTIAL TRANSVERSELY ACROSS THE BODY OF EACH OF SAID UNITS, SAID CURRENT BEING SUFFICIENT TO DISSOCIATE WATER INTO HYDROGEN AND HYDROXYL IONS WITHIN THE DILUTING CHAMBERS, AND WITHDRAWING SEPARATE STREAMS OF DEIONIZED LIQUID AND ION-ENRICHED LIQUID FROM SAID SECOND UNIT.

References Cited (Backward Citations)

CA565892A Cited
US2815320A Cited
FR1140856A Cited
US2897051A Cited
GB815154A Cited
GB855681A Cited
GB866471A Cited
US2917368A Cited
US2923674A Cited
US3014855A Cited
US3062739A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-09-15 1968-03-16 1968-09-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-09-15 1972-03-16 1972-09-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-09-15 1976-03-16 1976-09-15 $7700.00 Window Closed / Lapsed

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