US2564456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of oxygenated compounds
Assignee: Shell Development Co
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Filing: 1949-10-21
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Granted: 1951-08-14
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Expires: 1969-10-21
Abstract
No abstract record available.
Inventors
- 👤 Johannes C Vlugter
- 👤 Aloysius I M Keulemans
- 👤 Marius T Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:39
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A PROCESS FOR THE SYNTHESIS OF AN OXYGENATED COMPOUND THROUGH CARBONYLATION IN THE PRESENCE OF A COBALT CATALYST, WHEREIN LIQUID PRODUCT OF THE CARBONYLATION IS COOLED TO A TEMPERATURE BELOW 50* C. AND THE COOLED LIQUID PRODUCT CONTAINING COBALT IN SOLUTION IS SUBSEQUENTLY SUBJECTED TO TREATMENT WITH HYDROGEN AT A TEMPERATURE OF ABOUT 150* C. TO 200* C. IN A SO-CALLED DECORBALTING ZONE TO CONVERT SAID COBALT IN SOLUTION INTO INSOLUBLE FORM, THE IMPROVEMENT WHICH COMPRISES, HEATING A PORTION OF THE LIQUID EFFLUENT OF SAID DECOBALTING ZONE SUBSTANTIALLY DEVOID OF DISSOLVED COBALT AND CONTAINING COBALT IN SUSPENSION WITH HYDROGEN UNDER A PARTIAL PRESSURE OF
Claim 2
Dependent Claim
105 words
IN A PROCESS FOR THE SYNTHESIS OF AN OXYGENATED COMPOUND THROUGH CARBONYLATION IN THE PRESENCE OF A COBALT CATALYST, WHEREIN LIQUID PRODUCT OF THE CARBONYLATION IS COOLED TO A TEMPERATURE BELOW 50* C. AND THE COOLED LIQUID PRODUCT CONTAINING COBALT IN SOLUTION IS SUBSEQUENTLY SUBJECTED TO TREATMENT WITH HYDROGEN AT A TEMPERATURE OF ABOUT 150* C. TO 200* C. IN A SO-CALLED DECORBALTING ZONE TO CONVERT SAID COBALT IN SOLUTION INTO INSOLUBLE FORM, THE IMPROVEMENT WHICH COMPRISES, HEATING A PORTION OF THE LIQUID EFFLUENT OF SAID DECOBALTING ZONE SUBSTANTIALLY DEVOID OF DISSOLVED COBALT AND CONTAINING COBALT IN SUSPENSION WITH HYDROGEN UNDER A PARTIAL PRESSURE OF
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) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |