US2953601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing amines
Assignee: Gulf Research and Development Co
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Filing: 1956-05-28
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Granted: 1960-09-20
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Whitaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:10
CPC Classifications
C; C07; C07C; C07C213/00; C07C213/02; C07C215/00; C07C215/02; C07C215/04; C07C215/06; C07C215/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A METHOD OF MAKING AMINES FROM ALCOHOLS SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY ALCOHOLS HAVING AT LEAST 5 CARBON ATOMS IN THE MOLECULE BUT NO MORE THAN 13 CARBON ATOMS IN THE MOLECULE AND AMMONIA IN THE PRESENCE OF A HYDROGENATION-DEHYDROGENATION CATALYST, THE IMPROVEMENT WHICH COMPRISES BRINGING THE REACTANTS TOGETHER IN MIXED PHASE, WITH THE AMMONIA IN VAPOR PHASE AND THE ALCOHOL IN LIQUID PHASE, AT LEAST ABOUT 1.1 MOLS OF ALCOHOL BEING PRESENT PER MOL OF AMMONIA, AT A PRESSURE OF ABOUT ATMOSPHERIC TO ABOUT 100 POUNDS PER SQUARE INCH AND A TEMPERATURE OF AT LEAST ABOUT 120*C. BUT NO MORE THAN ABOUT 250*C. WHILE CONTINUOUSLY REMOVING WATER FORMED DURING THE REACTION FROM THE REACTION ZONE.
Claim 2
Dependent Claim
121 words
IN A METHOD OF MAKING AMINES FROM ALCOHOLS SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY ALCOHOLS HAVING AT LEAST 5 CARBON ATOMS IN THE MOLECULE BUT NO MORE THAN 13 CARBON ATOMS IN THE MOLECULE AND AMMONIA IN THE PRESENCE OF A HYDROGENATION-DEHYDROGENATION CATALYST, THE IMPROVEMENT WHICH COMPRISES BRINGING THE REACTANTS TOGETHER IN MIXED PHASE, WITH THE AMMONIA IN VAPOR PHASE AND THE ALCOHOL IN LIQUID PHASE, AT LEAST ABOUT 1.1 MOLS OF ALCOHOL BEING PRESENT PER MOL OF AMMONIA, AT A PRESSURE OF ABOUT ATMOSPHERIC TO ABOUT 100 POUNDS PER SQUARE INCH AND A TEMPERATURE OF AT LEAST ABOUT 120*C. BUT NO MORE THAN ABOUT 250*C. WHILE CONTINUOUSLY REMOVING WATER FORMED DURING THE REACTION FROM THE REACTION ZONE.
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |