US3344196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of alkanoic dicarboxylic acids using sintered cobalt catalyst
Assignee: BASF SE
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Filing: 1964-06-02
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Granted: 1967-09-26
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Expires: 1984-06-02
Abstract
No abstract record available.
Inventors
- 👤 Corr Hubert
- 👤 Hornberger Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:20
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C29/149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS FOR THE HYDROGENATION OF AN ALKANEDIOIC ACID CONTAINING 3 TO 12 CARBON ATOMS TO THE CORRESPONDING ALCOHOL WHICH COMPRISES CONTACTING SAID ALKANEDIOIC ACID DISPERSED IN WATER AT A TEMPERATURE BETWEEN 150* AND 300*C. AND A PRESSURE BETWEEN 5 AND 500 ATMOSPHERES WITH ELEMENTARY HYDROGEN IN CONTACT WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF COBALT AND A MIXTURE OF COBALT AND COPPER WITH A COPPER CONTENT OF UP TO 20% WHICH HAS BEEN OBTAINED BY SINTERING AT A TEMPERATURE ABOVE 600*C.
Claim 2
Dependent Claim
84 words
A PROCESS FOR THE HYDROGENATION OF AN ALKANEDIOIC ACID CONTAINING 3 TO 12 CARBON ATOMS TO THE CORRESPONDING ALCOHOL WHICH COMPRISES CONTACTING SAID ALKANEDIOIC ACID DISPERSED IN WATER AT A TEMPERATURE BETWEEN 150* AND 300*C. AND A PRESSURE BETWEEN 5 AND 500 ATMOSPHERES WITH ELEMENTARY HYDROGEN IN CONTACT WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF COBALT AND A MIXTURE OF COBALT AND COPPER WITH A COPPER CONTENT OF UP TO 20% WHICH HAS BEEN OBTAINED BY SINTERING AT A TEMPERATURE ABOVE 600*C.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |