US3122593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the hydrogenation of naphthalene
Assignee: Union Carbide Corp
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Filing: 1960-12-06
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Granted: 1964-02-25
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Expires: 1980-12-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Wilson
- 👤 George F Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:47
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C07C2523/00; C07C2523/02; C07C2523/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
AN IMPROVED PROCESS FOR THE ALKALI METAL CATALYZED HYDROGENATION OF NAPHTHALENE WHICH COMPRISES ADMIXING NAPHTHALENE WITH AN ALKALI METAL AND AN ORGANIC, ACTIVE HYDROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE PRIMARY AND SECONDARY ALIPHATIC AND AROMATIC AMINES, THE PHENOLS, THE ALIPHATIC AND AROMATIC ALCOHOLS, THE ALIPHATIC AND AROMATIC CARBOXYLIC ACIDS, THE ALIPHATIC AND AROMATIC CARBONAMIDES AND CARBONIMIDES, THE AROMATIC SULFONIC ACIDS, INDENE AND FLUORENE, IN A PROPORTION OF FROM ABOUT 0.1 PART TO ABOUT 10 PARTS OF THE ACTIVE HYDROGEN COMPOUND AND AT LEAST ABOUT 1 PART OF THE ALKALI METAL PER 100 PARTS BY WEIGHT OF NAPHTHALENE, THE PROPORTION OF ALKALI METAL BEING SUFFICIENT TO PROVIDE CONTINUALLY AT LEAST ABOUT 0.5 PART OF METALLIC ALKALI METAL PER 100 PARTS BY WEIGHT OF NAPHTHALENE IN THE RESULTANT MIXTURE, AND CONTACTING SAID MIXTURE WITH HYDROGEN GAS AT A TEMPERATURE OF AT LEAST ABOUT 150*C., UNDER A HYDROGEN PRESSURE OF AT LEAST ABOUT 250 POUNDS PER SQUARE INCH GAUGE.
Claim 2
Dependent Claim
159 words
AN IMPROVED PROCESS FOR THE ALKALI METAL CATALYZED HYDROGENATION OF NAPHTHALENE WHICH COMPRISES ADMIXING NAPHTHALENE WITH AN ALKALI METAL AND AN ORGANIC, ACTIVE HYDROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE PRIMARY AND SECONDARY ALIPHATIC AND AROMATIC AMINES, THE PHENOLS, THE ALIPHATIC AND AROMATIC ALCOHOLS, THE ALIPHATIC AND AROMATIC CARBOXYLIC ACIDS, THE ALIPHATIC AND AROMATIC CARBONAMIDES AND CARBONIMIDES, THE AROMATIC SULFONIC ACIDS, INDENE AND FLUORENE, IN A PROPORTION OF FROM ABOUT 0.1 PART TO ABOUT 10 PARTS OF THE ACTIVE HYDROGEN COMPOUND AND AT LEAST ABOUT 1 PART OF THE ALKALI METAL PER 100 PARTS BY WEIGHT OF NAPHTHALENE, THE PROPORTION OF ALKALI METAL BEING SUFFICIENT TO PROVIDE CONTINUALLY AT LEAST ABOUT 0.5 PART OF METALLIC ALKALI METAL PER 100 PARTS BY WEIGHT OF NAPHTHALENE IN THE RESULTANT MIXTURE, AND CONTACTING SAID MIXTURE WITH HYDROGEN GAS AT A TEMPERATURE OF AT LEAST ABOUT 150*C., UNDER A HYDROGEN PRESSURE OF AT LEAST ABOUT 250 POUNDS PER SQUARE INCH GAUGE.
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |