US2802843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxo synthesis
Assignee: Ruhrchemie AG
•
Filing: 1953-01-14
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Granted: 1957-08-13
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Expires: 1973-01-14
Abstract
No abstract record available.
Inventors
- 👤 Tramm Heinrich
- 👤 Kolling Helmut
- 👤 Schnur Friedrich
- 👤 Buchner Karl
- 👤 Heger Herbert
- 👤 Stiebling Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:06
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; B01J2219/00; B01J2219/00761; B01J2219/00763; B01J2219/00765; B01J2219/0077; B01J2219/00772; B01J2219/18; B01J2219/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN THE OXO SYNTHESIS PROCESS IN WHICH AN OLEFINIC UNSATURATED CARBON COMPOUND IS CONTACTED WITH CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF AN AQUEOUS SALT SOLUTION OF COBALT AT A TEMPERATURE OF BETWEEN ABOUT 120 AND 220*C, AND A PRESSURE IN EXCESS OF ABOUT 50 KG/SQ CM., THE IMPROVEMENT FOR CONTINUOUS OPERATION WHICH COMPRISES PASSING AN INTIMATE MIXTURE OF SAID UNSATURATED CARBON COMPOUND, CARBON MONOXIDE, HYDROGEN, AND AQUEOUS SALT SOLUTION OF COBALT THROUGH A LONG, NARROW, REACTION ZONE DEFINED BY A HELIX OF LOW PITCH POSITIONED IN AN ELONGATED, CYLINDRICAL PRESSURE VESSEL AT A FLOW VELOCITY SUFFICIENT TO CAUSE TURBULENCE AND THEREBY PREVENT SEPARATION OF THE MIXTURE, AND THEREAFTER SEPARATING THE REACTION PRODUCT FORMED INTO GASEOUS, AQUEOUS AND ONLY CONSTITUENTS.
Claim 2
Dependent Claim
121 words
IN THE OXO SYNTHESIS PROCESS IN WHICH AN OLEFINIC UNSATURATED CARBON COMPOUND IS CONTACTED WITH CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF AN AQUEOUS SALT SOLUTION OF COBALT AT A TEMPERATURE OF BETWEEN ABOUT 120 AND 220*C, AND A PRESSURE IN EXCESS OF ABOUT 50 KG/SQ CM., THE IMPROVEMENT FOR CONTINUOUS OPERATION WHICH COMPRISES PASSING AN INTIMATE MIXTURE OF SAID UNSATURATED CARBON COMPOUND, CARBON MONOXIDE, HYDROGEN, AND AQUEOUS SALT SOLUTION OF COBALT THROUGH A LONG, NARROW, REACTION ZONE DEFINED BY A HELIX OF LOW PITCH POSITIONED IN AN ELONGATED, CYLINDRICAL PRESSURE VESSEL AT A FLOW VELOCITY SUFFICIENT TO CAUSE TURBULENCE AND THEREBY PREVENT SEPARATION OF THE MIXTURE, AND THEREAFTER SEPARATING THE REACTION PRODUCT FORMED INTO GASEOUS, AQUEOUS AND ONLY CONSTITUENTS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |