US3057906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of aliphatic nitriles by catalyzed reaction of hydrocarbons with cyanogen or hydrogen cyanide
Assignee: Pure Oil Co
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Filing: 1959-04-27
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Granted: 1962-10-09
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 William L Fierce
- 👤 Walter J Sandner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:49
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF PREPARING ALIPHATIC NITRILES SELECTED FROM THE GROUP CONSISTING OF ALKYL NITRILES AND ALKENYL NITRILES WHICH CONSISTS OF HEATING A MIXTURE OF AT LEAST ONE HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF C2-C20 ALKANES AND ALKENES WITH AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANOGEN AND HYDROGEN CYANIDE, TO A TEMPERATURE IN THE RANGE OF ABOUT 475*-700* C., CONTACTING THE HEATED MIXTURE WITH A CATALYST CONSISTING ESSENTIALLY OF 0.05-5.0% W. OF A GROUP VIII NOBLE METAL ON A REFRACTORY SUPPORT WHICH IS CATALYTICALLY INACTIVE IN PROMOTING COMPETING REACTIONS, AT A GASEOUS HOURLY SPACE VELOCITY OF ABOUT 20-2000 AND A MOL RATIO OF REACTANTS IN THE RANGE FROM 0.05-20 MOLS OF THE FIRST NAMED REACTANT PER MOL OF THE SECOND NAMED REACTANT.
Claim 2
Independent Claim
126 words
A METHOD OF PREPARING ALIPHATIC NITRILES SELECTED FROM THE GROUP CONSISTING OF ALKYL NITRILES AND ALKENYL NITRILES WHICH CONSISTS OF HEATING A MIXTURE OF AT LEAST ONE HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF C2-C20 ALKANES AND ALKENES WITH AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CYANOGEN AND HYDROGEN CYANIDE, TO A TEMPERATURE IN THE RANGE OF ABOUT 475*-700* C., CONTACTING THE HEATED MIXTURE WITH A CATALYST CONSISTING ESSENTIALLY OF 0.05-5.0% W. OF A GROUP VIII NOBLE METAL ON A REFRACTORY SUPPORT WHICH IS CATALYTICALLY INACTIVE IN PROMOTING COMPETING REACTIONS, AT A GASEOUS HOURLY SPACE VELOCITY OF ABOUT 20-2000 AND A MOL RATIO OF REACTANTS IN THE RANGE FROM 0.05-20 MOLS OF THE FIRST NAMED REACTANT PER MOL OF THE SECOND NAMED REACTANT.
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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |