US3297776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the removal of acetylenic hydrocarbons from hydrocarbon mixtures containing diolefines
Assignee: Huels AG
•
Filing: 1963-09-27
•
Granted: 1967-01-10
•
Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Reich Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:20
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/86; B01J23/868; C; C07; C07C; C07C7/00; C07C7/148; C07C7/163; C07C7/167
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
61 words
A MIXED CATALYST COMPOSITION CONSISTING ESSENTIALLY OF COPPER CHROMITE AND CONTAINING FROM 5 TO 50% BY WEIGHT OF METALLIC COPPER, FROM 1 TO 50% BY WEIGHT OF CHROMIUM AND FROM 0.1 TO 50% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES AND HYDROXIDES OF THE ELEMENTS OF GROUPS IA AND IIA OF THE PERIODIC SYSTEM OF MENDELEEFF.
Claim 2
Dependent Claim
61 words
A MIXED CATALYST COMPOSITION CONSISTING ESSENTIALLY OF COPPER CHROMITE AND CONTAINING FROM 5 TO 50% BY WEIGHT OF METALLIC COPPER, FROM 1 TO 50% BY WEIGHT OF CHROMIUM AND FROM 0.1 TO 50% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES AND HYDROXIDES OF THE ELEMENTS OF GROUPS IA AND IIA OF THE PERIODIC SYSTEM OF MENDELEEFF.
Claim 3
Dependent Claim
88 words
A PROCESS FOR THE REDUCTION OF THE ACETYLENIC HYDROCARBON CONTENT OF A HYDROCARBON MIXTURE CONTAINING IT AND A DIOLEFINE BY SELECTIVE HYDROGENATION IN THE GAS PHASE WHICH COMPRISES PASSING THE HYDROCARBON MIXTURE IN THE FORM OF A GAS AND A QUANTITY OF HYDROGEN WHICH IS AT LEAST MOLECULARLY EQUIVALENT TO SAID ACETYLENIC HYDROCARBON CONTENT AT A TEMPERATURE WITHIN THE RANGE FROM 30 TO 250*C. AND AT A PRESSURE WITHIN THE RANGE FROM 0.2 AND 30 ATMOSPHERES OVER AND IN CONTACT WITH THE CATALYST COMPOSITION DEFINED IN CLAIM 1.
References Cited (Backward Citations)
US2969407A
Cited
US3108947A
Cited
US3128317A
Cited
US3200167A
Cited
US3098882A
Cited
US3218268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |