US2844633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of
Assignee: —
•
Filing: —
•
Granted: 1958-07-22
•
Expires: 1975-07-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:04
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/02; C07C31/125; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C29/149; C07C31/04; C07C31/08; C07C31/10; C07C31/12; C07C67/00; C07C67/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR THE PRODUCTION OF A HIGHER FATTY ALCOHOL FROM A CORRESPONDING FATTY ACID COMPRISING REACTING THE ACID WITH AN EXCESS OF METHANOL TO PRODUCE THE METHYL ESTER OF SAID ACID IN THE PRESENCE OF A CATALYST, WHILE MAINTAINING A TEMPERATURE OF 325 TO 375*C. AND A PRESSURE OF AT LEAST 300 ATMOSPHERES AT WHICH BOTH THE WATER FORMED BY THE REACTION BETWEEN THE ACID AND THE METHANOL, AND AT LEAST PART OF THE EXCESS METHANOL, ARE DECOMPOSED TO YIELD ACTIVE HYDROGEN, WHEREBY THE SAID METHYL ESTER IS REDUCED BY THE HYDROGEN THUS PRODUCED TO THE CORRESPONDING FATTY ALCOHOL.
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE PRODUCTION OF A HIGHER FATTY ALCOHOL FROM A CORRESPONDING FATTY ACID COMPRISING REACTING THE ACID WITH AN EXCESS OF METHANOL TO PRODUCE THE METHYL ESTER OF SAID ACID IN THE PRESENCE OF A CATALYST, WHILE MAINTAINING A TEMPERATURE OF 325 TO 375*C. AND A PRESSURE OF AT LEAST 300 ATMOSPHERES AT WHICH BOTH THE WATER FORMED BY THE REACTION BETWEEN THE ACID AND THE METHANOL, AND AT LEAST PART OF THE EXCESS METHANOL, ARE DECOMPOSED TO YIELD ACTIVE HYDROGEN, WHEREBY THE SAID METHYL ESTER IS REDUCED BY THE HYDROGEN THUS PRODUCED TO THE CORRESPONDING FATTY ALCOHOL.
References Cited (Backward Citations)
US2322097A
Cited
US2156217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |