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Patent US3320023A successfully refreshed from Google Patents.
US3320023A
Expired / Lapsed
US
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Preparation of refractory metal chlorides
Assignee: EIDP Inc
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Filing: 1963-09-10
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Granted: 1967-05-16
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Expires: 1983-09-10
Abstract
No abstract record available.
Inventors
- 👤 George Angelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:36
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/02; C22B1/08; C01; C01G; C01G1/00; C01G1/06; C01G35/00; C01P; C01P2006/00; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR PREPARING REFRACTORY METAL CHLORIDES WHICH COMPRISES ADDING TO A REACTION CHAMBER PREVIOUSLY HEATED TO A TEMPERATURE RANGING FROM 600*C. TO 700*C. AND REACTING THEREIN (1) ORE CONTAINING A REFRACTORY METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCOMIUM, HAFNIUM, VANADIUM, NIOBIUM AND TANTALUM AND MIXTURES THEREOF, (2) ACETYLENE, AND (3) CHLORINE, INTRODUCING SAID REACTANTS AT SUCH A RATE THAT SUFFICIENT HEAT IS EVOLVED FROM THE REACTION TO MAINTAIN A SELF-SUSTAINING EXOTHERMIC REACTION WITH HYDROGEN CHLORIDE FORMATION TO PROMOTE AND COMPLETE CHLORINATION OF SAID OXIDIC ORE AND RECOVERING THE RESULTING METAL CHLORIDES.
Claim 2
Dependent Claim
95 words
A PROCESS FOR PREPARING REFRACTORY METAL CHLORIDES WHICH COMPRISES ADDING TO A REACTION CHAMBER PREVIOUSLY HEATED TO A TEMPERATURE RANGING FROM 600*C. TO 700*C. AND REACTING THEREIN (1) ORE CONTAINING A REFRACTORY METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCOMIUM, HAFNIUM, VANADIUM, NIOBIUM AND TANTALUM AND MIXTURES THEREOF, (2) ACETYLENE, AND (3) CHLORINE, INTRODUCING SAID REACTANTS AT SUCH A RATE THAT SUFFICIENT HEAT IS EVOLVED FROM THE REACTION TO MAINTAIN A SELF-SUSTAINING EXOTHERMIC REACTION WITH HYDROGEN CHLORIDE FORMATION TO PROMOTE AND COMPLETE CHLORINATION OF SAID OXIDIC ORE AND RECOVERING THE RESULTING METAL CHLORIDES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |