Patent US2721136A successfully refreshed from Google Patents.
US2721136A
Expired / Lapsed
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Process for demetalling hydroformylation stage products
Assignee: Gulf Oil Corp
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Filing: 1951-06-18
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Granted: 1955-10-18
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Expires: 1971-06-18
Abstract
No abstract record available.
Inventors
- 👤 Charles E Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:02
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; C07C45/78; C07C45/783
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A PROCESS FOR REMOVING AT LEAST ONE METAL CARBONYL FROM THE HYDROFORMYLATION STAGE PRODUCTS CONTAINING AT LEAST ONE METAL CARBONYL WHICH COMPRISES PASSING SAID HYDROFORMYLATION STAGE PRODUCTS INTIALLY AT A TEMPERATURE BELOW THE DECOMPOSITION TEMPERATURE OF THE METAL CARBONYL WITH THE LOWEST DECOMPOSITION TEMPERATURE DOWNWARDLY FROM THE UPPER PORTION OF THE ELONGATED SEPARATION ZONE CONTAINING PACKING MATERIAL, PASSING STREAM UPWARDLY FROM A POINT IN THE LOWEST PORTION OF SAID SEPARATION ZONE, PASSING INERT GAS UPWARDLY FROM AT LEAST ONE POINT ABOVE THE FIRST-NAMED POINT WHERE SAID STEAM IS INTRODUCED, CAUSING COOLING AND CONDENSATION OF SAID STRAM BY CONTACTING SAID STEAM WITH SAID HYDROFORMYLATION STAGE PRODUCTS AND SAID PACKING MATERIAL AND BY REDUCING THE PARTIAL PRESSURE OF SAID STEAM WITH SAID INERT GAS, THE AMOUNT AND PRESSURE OF SAID STEAM AND THE AMOUNT AND TEMPERATURE OF SAID INERT GAS BEING ASJUSTED TO HEAT THE HYDROFORMYLATION STAE PRODUCTS IN THE SEPARATION ZONE AT LEAST TO THE DE-
Claim 2
Dependent Claim
155 words
A PROCESS FOR REMOVING AT LEAST ONE METAL CARBONYL FROM THE HYDROFORMYLATION STAGE PRODUCTS CONTAINING AT LEAST ONE METAL CARBONYL WHICH COMPRISES PASSING SAID HYDROFORMYLATION STAGE PRODUCTS INTIALLY AT A TEMPERATURE BELOW THE DECOMPOSITION TEMPERATURE OF THE METAL CARBONYL WITH THE LOWEST DECOMPOSITION TEMPERATURE DOWNWARDLY FROM THE UPPER PORTION OF THE ELONGATED SEPARATION ZONE CONTAINING PACKING MATERIAL, PASSING STREAM UPWARDLY FROM A POINT IN THE LOWEST PORTION OF SAID SEPARATION ZONE, PASSING INERT GAS UPWARDLY FROM AT LEAST ONE POINT ABOVE THE FIRST-NAMED POINT WHERE SAID STEAM IS INTRODUCED, CAUSING COOLING AND CONDENSATION OF SAID STRAM BY CONTACTING SAID STEAM WITH SAID HYDROFORMYLATION STAGE PRODUCTS AND SAID PACKING MATERIAL AND BY REDUCING THE PARTIAL PRESSURE OF SAID STEAM WITH SAID INERT GAS, THE AMOUNT AND PRESSURE OF SAID STEAM AND THE AMOUNT AND TEMPERATURE OF SAID INERT GAS BEING ASJUSTED TO HEAT THE HYDROFORMYLATION STAE PRODUCTS IN THE SEPARATION ZONE AT LEAST TO THE DE-
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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |