US2710797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing metals from hydroformylation products
Assignee: Gulf Research and Development Co
•
Filing: 1950-12-30
•
Granted: 1955-06-14
•
Expires: 1970-12-30
Abstract
No abstract record available.
Inventors
- 👤 Bernard H Gwynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:19
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; C07C45/78; C07C45/783
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS FOR REMOVING COBALT CARBONYL AND AT LEAST ONE METAL CARBONYL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL, CHROMIUM AND MOLYBDENUM CARBONYLS FROM HYDROFORMYLATION STAGE PRODUCTS CONTAINING SUCH METAL CARBONYLS WHICH COMPRISES INTRODUCING STEAM TO SAID HYDROFORMYLATION STAGE PRODUCTS IN AN AMOUNT SUFFICIENT TO HEAT SAID HYDROFORMYLATION STAGE PRODUCTS TO THE DECOMPOSITION TEMPERTURE OF COBALT CARBONYL BUT BELOW THE DECOMPOSITION TEMPERATURES OF THE REMAINING METAL CARBONYLS IN SAID HYDROFORMYLATION STAGE PRODUCTS, SEPARATING THE RESULTING COBALT FROM SAID HYDROFORMLATION STAGE PRODUCTS, INTRODUCING STEAM TO SAID TREATED HYDROFORMYLATION STAGE PRODUCTS IN AN AMOUNT SUFFICIENT TO HEAT THE SAME TO THE DECOMPOSITION TEMPERATURE OF AT LEAST ONE OF SAID METAL CARBONYLS SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL, CHROMIUM AND MOLYBDENUM CARBONYLS, AND SEPARATING THE RESULTING METAL FROM SAID LATTER TREATED HYDROFORMYLATION STAGE PRODUCTS.
Claim 2
Dependent Claim
134 words
A PROCESS FOR REMOVING COBALT CARBONYL AND AT LEAST ONE METAL CARBONYL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL, CHROMIUM AND MOLYBDENUM CARBONYLS FROM HYDROFORMYLATION STAGE PRODUCTS CONTAINING SUCH METAL CARBONYLS WHICH COMPRISES INTRODUCING STEAM TO SAID HYDROFORMYLATION STAGE PRODUCTS IN AN AMOUNT SUFFICIENT TO HEAT SAID HYDROFORMYLATION STAGE PRODUCTS TO THE DECOMPOSITION TEMPERTURE OF COBALT CARBONYL BUT BELOW THE DECOMPOSITION TEMPERATURES OF THE REMAINING METAL CARBONYLS IN SAID HYDROFORMYLATION STAGE PRODUCTS, SEPARATING THE RESULTING COBALT FROM SAID HYDROFORMLATION STAGE PRODUCTS, INTRODUCING STEAM TO SAID TREATED HYDROFORMYLATION STAGE PRODUCTS IN AN AMOUNT SUFFICIENT TO HEAT THE SAME TO THE DECOMPOSITION TEMPERATURE OF AT LEAST ONE OF SAID METAL CARBONYLS SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL, CHROMIUM AND MOLYBDENUM CARBONYLS, AND SEPARATING THE RESULTING METAL FROM SAID LATTER TREATED HYDROFORMYLATION STAGE PRODUCTS.
References Cited (Backward Citations)
US2504682A
Cited
US2560360A
Cited
US2508743A
Cited
US2638485A
Cited
US2514961A
Cited
US2595096A
Cited
US2564456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |