US2902360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of titanium and zirconium by reduction of their sulfides
Assignee: Veolia WTS Systems USA Inc
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Filing: 1957-05-14
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Granted: 1959-09-01
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Juda Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:26
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/14; C22B34/12; C22B34/1204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE PROCESS FOR PRODUCING ELEMENTAL METALS OF THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM WHICH COMPRISES, REACTING THE SULFIDES OF SAID METALS WITH AN ALKALI METAL REDUCING AGENT AT A TEMPERATURE IN EXCESS OF 800* C., DRAINING THE PRODUCED LIQUID ALKALI METAL SULFIDES, COOLING THE MASS BELOW 500* C., AND ADDING ELEMENTAL SULFUR THERETO TO FORM POLYSULFIDES OF REMAINING ALKALI METALS, SEPARATING THE BULK OF THE LATTER FROM THE ELEMENTAL METAL BY DRAINING, FURTHER COOLING TO ROOM TEMPERATURES AND LEACHING THE SAME WITH A NON-AQUEOUSOLVENT THEREFOR.
Claim 2
Dependent Claim
86 words
THE PROCESS FOR PRODUCING ELEMENTAL METALS OF THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM WHICH COMPRISES, REACTING THE SULFIDES OF SAID METALS WITH AN ALKALI METAL REDUCING AGENT AT A TEMPERATURE IN EXCESS OF 800* C., DRAINING THE PRODUCED LIQUID ALKALI METAL SULFIDES, COOLING THE MASS BELOW 500* C., AND ADDING ELEMENTAL SULFUR THERETO TO FORM POLYSULFIDES OF REMAINING ALKALI METALS, SEPARATING THE BULK OF THE LATTER FROM THE ELEMENTAL METAL BY DRAINING, FURTHER COOLING TO ROOM TEMPERATURES AND LEACHING THE SAME WITH A NON-AQUEOUSOLVENT THEREFOR.
References Cited (Backward Citations)
DE296867C
Cited
US2801915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |