Patent US2741588A successfully refreshed from Google Patents.
US2741588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic production of titanium metal
Assignee: NL Industries Inc
•
Filing: 1951-10-05
•
Granted: 1956-04-10
•
Expires: 1971-10-05
Abstract
No abstract record available.
Inventors
- 👤 Marshall B Alpert
- 👤 Powell Robert Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:52
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/26; C25C3/28; C25C7/00; C25C7/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A METHOD FOR ELECTROLYTICALLY PRODUCING TITANIUM METAL IN AN ELECTROLYTIC CELL HAVING A FUSED SALT ELECTROLYTE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES, ALKALINE EARTH METAL HALIDES, MAGNESIUM HALIDES AND MIXTURES THEREOF, A NON-CONSUMABLE ANODE, A SOLUBILIZATION CATHODE AND A DEPOSITION CATHODE, AND SEPARATING MEANS FOR SEPARATING A PRODUCT RELEASED AT THE ANODE FROM CONTACT WITH SAID CATHODES, COMPRISING: INTRODUCING TITANIUM TETRACHLORIDE INTO SAID ELECTROLYTE IN PROXIMITY TO SAID SOLUBILIZATION CATHODE, MEANWHILE PASSING ELECTRIC CURRENT BETWEEN EACH OF SAID CATHODES AND SAID ANODE, THE AMOUNT OF CURRENT ADDED THROUGH EACH CATHODE BEING FROM 1 TO 2 FARADAYS AT THE SOLUBILIZATION CATHODE AND FROM 2 TO 3 FARADAYS AT THE DEPOSITION CATHODE FOR EACH MOLE OF TITANIUM TETRACHLORIDE INTRODUCED, TO PRODUCE TITANIUM DICHLORIDE AND TITANIUM TRICHLORIDE IN PROXIMITY TO THE SOLUBILIZATION CATHODE, TRANSFERRING THE SO-FORMED TITANIUM DICHLORIDE AND TITANIUM TRICHLORIDE TO SAID DEPOSITION CATHODE AND DEPOSITING TITANIUM METAL ON SAID DEPOSITION CATHODE WHILE RELEASING CHLORINE AT SAID ANODE, AND MAINTAINING THE MOLALITY OF THE TITANIUM TRICHLORIDE NO GREATER THAN 2.0 AND MOLALITY OF TITANIUM DICHLORIDE NO LESS THAN 0.05 IN PROXIMITY TO THE DEPOSITION CATHODE.
Claim 2
Independent Claim
186 words
A METHOD FOR ELECTROLYTICALLY PRODUCING TITANIUM METAL IN AN ELECTROLYTIC CELL HAVING A FUSED SALT ELECTROLYTE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HALIDES, ALKALINE EARTH METAL HALIDES, MAGNESIUM HALIDES AND MIXTURES THEREOF, A NON-CONSUMABLE ANODE, A SOLUBILIZATION CATHODE AND A DEPOSITION CATHODE, AND SEPARATING MEANS FOR SEPARATING A PRODUCT RELEASED AT THE ANODE FROM CONTACT WITH SAID CATHODES, COMPRISING: INTRODUCING TITANIUM TETRACHLORIDE INTO SAID ELECTROLYTE IN PROXIMITY TO SAID SOLUBILIZATION CATHODE, MEANWHILE PASSING ELECTRIC CURRENT BETWEEN EACH OF SAID CATHODES AND SAID ANODE, THE AMOUNT OF CURRENT ADDED THROUGH EACH CATHODE BEING FROM 1 TO 2 FARADAYS AT THE SOLUBILIZATION CATHODE AND FROM 2 TO 3 FARADAYS AT THE DEPOSITION CATHODE FOR EACH MOLE OF TITANIUM TETRACHLORIDE INTRODUCED, TO PRODUCE TITANIUM DICHLORIDE AND TITANIUM TRICHLORIDE IN PROXIMITY TO THE SOLUBILIZATION CATHODE, TRANSFERRING THE SO-FORMED TITANIUM DICHLORIDE AND TITANIUM TRICHLORIDE TO SAID DEPOSITION CATHODE AND DEPOSITING TITANIUM METAL ON SAID DEPOSITION CATHODE WHILE RELEASING CHLORINE AT SAID ANODE, AND MAINTAINING THE MOLALITY OF THE TITANIUM TRICHLORIDE NO GREATER THAN 2.0 AND MOLALITY OF TITANIUM DICHLORIDE NO LESS THAN 0.05 IN PROXIMITY TO THE DEPOSITION CATHODE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |