Patent US3138433A successfully refreshed from Google Patents.
US3138433A
Expired / Lapsed
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Method for preparing metal aluminum hydrides
Assignee: Metal Hydrides Inc
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Filing: 1960-04-06
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Granted: 1964-06-23
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 Giudice Frank P Del
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:08
CPC Classifications
C; C01; C01B; C01B6/00; C01B6/24; C01B6/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
THE METHOD FOR PREPARING A METAL ALUMINUM HYDRIDE HAVING THE FORMULA M(AIH4)X WHERE M IS A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METAS AND ALKALINE EARTH METALS AND X IS THE VALANCE OF THE SELECTED METAL WHICH COMPRISES HEATING IN A CONFINED REACTION ZONE A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS AND HYDRIDES OF ALKALI AND ALKALINE EARTH METALS WITH FINELY DIVIDED ALUMINUM METAL AND A REACTION PROMOTER IN AN AMOUNT FROM ABOUT 0.1 TO 25 PERCENT BY WEIGHT BASED UPON THE WEIGHT OF SAID SELECTED MATERIAL USED IN AN INERT LIQUID CARRIER AT A TEMPERATURE ABOVE ABOUT 100*C. BUT BELOW THE DECOMPOSITION TEMPERATURE OF ANY COMPOUND IN THE REACTION MIXTURE IN THE PRESENCE OF HYDROGEN UNDER SUPERATMOSPHERIC PRESSURE ABOVE ABOUT 2500 P.S.I. WHILE AGITATING THE MIXTURE UNTIL REACTION BETWEEN SAID SELECTED MATERIAL, ALUMINUM AND HYDROGEN IS COMPLETE, SAID REACTION PROMOTER BEING SELECTED FROM THE GROUP CONSISTING OF TETRAHALIDES OF TITANIUM, ZIRCONIUM, HAFNIUM AND THORIUM.
Claim 2
Independent Claim
163 words
THE METHOD FOR PREPARING A METAL ALUMINUM HYDRIDE HAVING THE FORMULA M(AIH4)X WHERE M IS A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METAS AND ALKALINE EARTH METALS AND X IS THE VALANCE OF THE SELECTED METAL WHICH COMPRISES HEATING IN A CONFINED REACTION ZONE A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS AND HYDRIDES OF ALKALI AND ALKALINE EARTH METALS WITH FINELY DIVIDED ALUMINUM METAL AND A REACTION PROMOTER IN AN AMOUNT FROM ABOUT 0.1 TO 25 PERCENT BY WEIGHT BASED UPON THE WEIGHT OF SAID SELECTED MATERIAL USED IN AN INERT LIQUID CARRIER AT A TEMPERATURE ABOVE ABOUT 100*C. BUT BELOW THE DECOMPOSITION TEMPERATURE OF ANY COMPOUND IN THE REACTION MIXTURE IN THE PRESENCE OF HYDROGEN UNDER SUPERATMOSPHERIC PRESSURE ABOVE ABOUT 2500 P.S.I. WHILE AGITATING THE MIXTURE UNTIL REACTION BETWEEN SAID SELECTED MATERIAL, ALUMINUM AND HYDROGEN IS COMPLETE, SAID REACTION PROMOTER BEING SELECTED FROM THE GROUP CONSISTING OF TETRAHALIDES OF TITANIUM, ZIRCONIUM, HAFNIUM AND THORIUM.
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |