US2993926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing nitriles
Assignee: Archer Daniels Midland Co
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Filing: 1957-10-30
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Granted: 1961-07-25
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Expires: 1977-10-30
Abstract
No abstract record available.
Inventors
- 👤 Russell J Stenberg
- 👤 Alfred E Rheineck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:33
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/315; C07; C07C; C07C253/00; C07C253/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A LIQUID PHASE PROCESS OF CONVERTING AN ALCOHOL ESTER OF A FATTY ACID COMPOUND, HAVING FROM 8 THROUGH 36 CARBON ATOMS IN THE FATTY ACID PORTION AND FROM 1 THROUGH 8 CARBON ATOMS IN THE ALCOHOL PORTION TO NITRILE WHICH CONSISTS ESSENTIALLY IN THE STEPS OF ADDING TO SAID FATTY ACID COMPOUND FROM ABOUT 0.01% TO ABOUT 1.5% METALI CATALYST BASED ON THE WEIGHT OF THE COMPOUND BEING CONVERTED AND IN THE FORM OF A TETRA ALCOHOLATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF THE TETRA-VALENT METALS OF GROUP IVB OF THE PERIODIC TABLE AND CONTAINING FROM 1 THROUGH 8 CARBON ATOMS IN THE ALCOHOL GROUPS, MIXING AND HEATING SAID COMPOUND AND CATALYST, ADDING AMMONIA AND EFFECTING THE FORMATION OF A NITRILE OF SAID COMPOUND IN THE TEMPERATURE RANGE OF ABOUT 100*C. TO ABOUT 315*C.
Claim 2
Dependent Claim
137 words
A LIQUID PHASE PROCESS OF CONVERTING AN ALCOHOL ESTER OF A FATTY ACID COMPOUND, HAVING FROM 8 THROUGH 36 CARBON ATOMS IN THE FATTY ACID PORTION AND FROM 1 THROUGH 8 CARBON ATOMS IN THE ALCOHOL PORTION TO NITRILE WHICH CONSISTS ESSENTIALLY IN THE STEPS OF ADDING TO SAID FATTY ACID COMPOUND FROM ABOUT 0.01% TO ABOUT 1.5% METALI CATALYST BASED ON THE WEIGHT OF THE COMPOUND BEING CONVERTED AND IN THE FORM OF A TETRA ALCOHOLATE OF A METAL SELECTED FROM THE GROUP CONSISTING OF THE TETRA-VALENT METALS OF GROUP IVB OF THE PERIODIC TABLE AND CONTAINING FROM 1 THROUGH 8 CARBON ATOMS IN THE ALCOHOL GROUPS, MIXING AND HEATING SAID COMPOUND AND CATALYST, ADDING AMMONIA AND EFFECTING THE FORMATION OF A NITRILE OF SAID COMPOUND IN THE TEMPERATURE RANGE OF ABOUT 100*C. TO ABOUT 315*C.
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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |