US2494366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of fatty esters
Assignee: Nopco Chemical Co
•
Filing: 1947-07-15
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Granted: 1950-01-10
•
Expires: 1967-07-15
Abstract
No abstract record available.
Inventors
- 👤 Francis J Sprules
- 👤 Price Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:47
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A PROCESS FOR PRODUCING ALKYL ESTERS OF FATTY ACIDS, THE STEPS COMPRISING TRANSETERIFYING FATTY MATERIALS HAVING ACID VALUES OF AT LEAST ONE BY CONTACTING SAID FATTY MATERIALS WITH AT LEAST TWO MOLES OF A MONOHYDRIC ALCOHOL PER FATTY ACID EQUIVALENT, SAID MONOHYDRIC ALCOHOL CONTAINING FROM ONE TO EIGHT CARBON ATOMS, IN THE PRESENCE OF A SUFFICIENT AMOUNT OF AN ALKALINE CATALYST TO NEUTRALIZE THE FREE FATTY ACIDS IN THE FATTY MATERIAL AND PROVIDE A SLIGHT EXCESS OF ALKALINE MATERIAL TO SERVE AS THE TRANSESTERIFICATION CATALYST, HEATING THE MASS FOR A SHORT TIME TO EFFECT TRANSESTERIFICATION, ADDING A SUFFICIENT AMOUNT OF AN ACID CATALYST TO SPLIT THE SOAPS IN THE REACTION MASS, NEUTRALIZE THE ALKALINE CATALYST IN THE REACTION MASS, AND PROVIDE A SLIGHT EXCESS OF ACIDIC MATERIAL TO SERVE AS AN ESTERIFICATION CATALYST, AND THEN ESTERFYING THE FREE FATTY ACIDS IN THE REACTION MASS WITH THE MONOHYDRIC ALCOHOL PRESENT THEREIN BY FURTHER HEATING OF THE MASS.
Claim 2
Dependent Claim
157 words
IN A PROCESS FOR PRODUCING ALKYL ESTERS OF FATTY ACIDS, THE STEPS COMPRISING TRANSETERIFYING FATTY MATERIALS HAVING ACID VALUES OF AT LEAST ONE BY CONTACTING SAID FATTY MATERIALS WITH AT LEAST TWO MOLES OF A MONOHYDRIC ALCOHOL PER FATTY ACID EQUIVALENT, SAID MONOHYDRIC ALCOHOL CONTAINING FROM ONE TO EIGHT CARBON ATOMS, IN THE PRESENCE OF A SUFFICIENT AMOUNT OF AN ALKALINE CATALYST TO NEUTRALIZE THE FREE FATTY ACIDS IN THE FATTY MATERIAL AND PROVIDE A SLIGHT EXCESS OF ALKALINE MATERIAL TO SERVE AS THE TRANSESTERIFICATION CATALYST, HEATING THE MASS FOR A SHORT TIME TO EFFECT TRANSESTERIFICATION, ADDING A SUFFICIENT AMOUNT OF AN ACID CATALYST TO SPLIT THE SOAPS IN THE REACTION MASS, NEUTRALIZE THE ALKALINE CATALYST IN THE REACTION MASS, AND PROVIDE A SLIGHT EXCESS OF ACIDIC MATERIAL TO SERVE AS AN ESTERIFICATION CATALYST, AND THEN ESTERFYING THE FREE FATTY ACIDS IN THE REACTION MASS WITH THE MONOHYDRIC ALCOHOL PRESENT THEREIN BY FURTHER HEATING OF THE MASS.
References Cited (Backward Citations)
US2383601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |