US2897160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation catalyst
Assignee: Chemetron Corp
•
Filing: 1958-02-10
•
Granted: 1959-07-28
•
Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 Harold W Fleming
- 👤 Ronald E Reitmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:45
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/08; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/16; C07C2523/00; C07C2523/70; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/882
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A SHAPED HYDROGENATION CATALYST SUITABLE FOR THE SELECTIVE HYDROGENATION OF ACETYLENE IN THE PRESENCE OF OLEFINS, SAID CATALYST COMPRISING FINELY DIVIDED COBALTMOLYBDENA SUPPORTED UPON A CARRIER FORMED INTO CATALYST SHAPES, THE COBALTL-MOLYBDENA BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 2.5 PERCENT AND ABOUT 15 PERCENT BY WEIGHT OF THE CATALYST AND THE MOLAL RATIO OF COBALT TO MOLYBDENA BEING BETWEEN ABOUT 1 TO 3 AND ABOUT 3 TO 1, AND THE CARRIER COMPRISING SET HYDRAULIC CEMENT AND BONDING CLAY, THE AMOUNT OF CEMENT BEING BETWEEN ABOUT 20 PERCENT AND ABOUT 85 PERCENT AND THE AMOUNT OF CLAY BEING BETWEEN ABOUT 10 PERCENT AND ABOUT 50 PERCENT BY WEIGHT OF THE CARRIER.
Claim 2
Dependent Claim
111 words
A SHAPED HYDROGENATION CATALYST SUITABLE FOR THE SELECTIVE HYDROGENATION OF ACETYLENE IN THE PRESENCE OF OLEFINS, SAID CATALYST COMPRISING FINELY DIVIDED COBALTMOLYBDENA SUPPORTED UPON A CARRIER FORMED INTO CATALYST SHAPES, THE COBALTL-MOLYBDENA BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 2.5 PERCENT AND ABOUT 15 PERCENT BY WEIGHT OF THE CATALYST AND THE MOLAL RATIO OF COBALT TO MOLYBDENA BEING BETWEEN ABOUT 1 TO 3 AND ABOUT 3 TO 1, AND THE CARRIER COMPRISING SET HYDRAULIC CEMENT AND BONDING CLAY, THE AMOUNT OF CEMENT BEING BETWEEN ABOUT 20 PERCENT AND ABOUT 85 PERCENT AND THE AMOUNT OF CLAY BEING BETWEEN ABOUT 10 PERCENT AND ABOUT 50 PERCENT BY WEIGHT OF THE CARRIER.
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) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |