US3894110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation process
Assignee: Phillips Petroleum Co
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Filing: 1973-11-15
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Granted: 1975-07-08
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Expires: 1993-11-15
Abstract
Abstract Dehydrogenatable organic compounds, diluted with steam, are dehydrogenated in the absence of free oxygen at high conversion and selectivity to less saturated compounds with a catalyst composite consisting essentially of one or more metals selected from the group consisting of Ni, Pd, Pt, Ir and Os in association with tin and a metal selected from the group consisting of cesium, rubidium, thallium and cerium deposited on a support such as alumina, silica or a Group II aluminate spinel.
Inventors
- 👤 Lewis E Drehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:09
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/324; C07C5/325; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
170 words
A PROCESS FOR THE DEHYDROGENATION OF A DEHYDROGENATABLE ORGANIC COMPOUND HAVING FROM 2 TO 12 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF STEAM AND IN THE ABSENCE OF FREE OXYGEN WHICH COMPRISES CONTACTING SAID COMPOUND UNDER DEHYDROGENATION CONDITIONS WITH A CATALYST CONSISTING ESSENTIALLY OF PLATINUM,, TIN AND CERIUM, EACH OF SAID PLATINUM, TIN AND CERIUM BEING SUPPORTED ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA, SILICA, MAGNESIA, ZIRCONIA, ALUMINA-SILICATES, GROUP II ALUMINATE SPINELS AND MIXTURES THEREOF, WHEREIN SAID PLATINUUM IS PRESENT IN SAID CATALYST IN AN AMOUNT RANGING FROM ABOUT 0.1 TO ABOUT 1 WEIGHT PERCENT, SAID TIN IS PRESENT IN AN AMOUNT RANGING FROM ABOUT 0.1 TO ABOUT 2 WEIGHT PERCENT, AND SAID CERIUM IS PRESENT IN AN AMOUNT RANGING FROM ABOUT 0.1 TO ABOUT 2 WEIGHT PERCENT, ALL WEIGHT PERCENTS BEING BASED ON THE WEIGHT OF FINAL CATALYST, AND WHEREIN THE MOLE RATIO OF SAID PLATINUM TO SAID TIN IS ABOUT 1:3 AND THE MOLE RATIO OF SAID PLATINUM TO SAID CERIUM IS ABOUT 1:1
Claim 2
Dependent Claim
170 words
A PROCESS FOR THE DEHYDROGENATION OF A DEHYDROGENATABLE ORGANIC COMPOUND HAVING FROM 2 TO 12 CARBON ATOMS PER MOLECULE IN THE PRESENCE OF STEAM AND IN THE ABSENCE OF FREE OXYGEN WHICH COMPRISES CONTACTING SAID COMPOUND UNDER DEHYDROGENATION CONDITIONS WITH A CATALYST CONSISTING ESSENTIALLY OF PLATINUM,, TIN AND CERIUM, EACH OF SAID PLATINUM, TIN AND CERIUM BEING SUPPORTED ON A SUPPORT SELECTED FROM THE GROUP CONSISTING OF ALUMINA, SILICA, MAGNESIA, ZIRCONIA, ALUMINA-SILICATES, GROUP II ALUMINATE SPINELS AND MIXTURES THEREOF, WHEREIN SAID PLATINUUM IS PRESENT IN SAID CATALYST IN AN AMOUNT RANGING FROM ABOUT 0.1 TO ABOUT 1 WEIGHT PERCENT, SAID TIN IS PRESENT IN AN AMOUNT RANGING FROM ABOUT 0.1 TO ABOUT 2 WEIGHT PERCENT, AND SAID CERIUM IS PRESENT IN AN AMOUNT RANGING FROM ABOUT 0.1 TO ABOUT 2 WEIGHT PERCENT, ALL WEIGHT PERCENTS BEING BASED ON THE WEIGHT OF FINAL CATALYST, AND WHEREIN THE MOLE RATIO OF SAID PLATINUM TO SAID TIN IS ABOUT 1:3 AND THE MOLE RATIO OF SAID PLATINUM TO SAID CERIUM IS ABOUT 1:1
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein said support is zinc aluminate.
Claim 4
Dependent Claim
11 words
The process of claim 2 wherein said organic compound is butane.
References Cited (Backward Citations)
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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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |