US3880776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly calcined support for catalytic dehydrogenation
Assignee: Phillips Petroleum Co
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Filing: 1973-06-07
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Granted: 1975-04-29
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Expires: 1993-06-07
Abstract
Abstract Alkanes, cycloalkanes, arylalkanes, and particularly n-butane diluted with steam, are dehydrogenated in the absence of free O2 at high conversion and selectivity to less saturated compounds with a novel highly calcined catalyst support such as alumina, silica, or a Group II aluminate spinel impregnated with a material selected from the group consisting of one or more Group VIII metals, a Group Ia metal, and a tin group metal and mixtures thereof.
Inventors
- 👤 Jr E O Box
- 👤 David A Uhrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:15
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3335; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; C07C5/321; C07C5/324; C07C5/325; C07C5/3337; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/06; C07C2523/14; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/46
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
A CATALYST COMPOSITION SUITABLE FOR USE IN THE DEHYDROGENERATION OF A DEHYDROGENATABLE HYDROCARBON HAVING FROM 2 TO 12 CARBON ATOMS IN THE ABSENCE OF FREE OXYGEN CONSISTING ESSENTIALLY OF A CALCINED SUPPORT CONSISTING ESSENTIALLY OF AT LEAST ONE ALUMINATE SPINEL COMPOSITION HAVING THE FORMULA M(AIO2)2 OR MO.AL2O3, WHEREIN M IS SELECTED FROM THE GROUP CONSISTING OF GROUP IIA OR GROUP IIB METALS, SAID SUPPORT HAVING BEEN CALCINED AT A TEMPERATURE IN THE RANGE OF ABOUT 1500* TO ABOUT 2500*F. FOR FROM ABOUT 1 TO ABOUT 100 HOURS; AND AT LEAST ONE GROUP VIII METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, PLATINUM, PALLADIUM, RUTHENIUM, RUTHENIUM, I RHODIUM, AND OSMIUM.
Claim 2
Dependent Claim
109 words
A CATALYST COMPOSITION SUITABLE FOR USE IN THE DEHYDROGENERATION OF A DEHYDROGENATABLE HYDROCARBON HAVING FROM 2 TO 12 CARBON ATOMS IN THE ABSENCE OF FREE OXYGEN CONSISTING ESSENTIALLY OF A CALCINED SUPPORT CONSISTING ESSENTIALLY OF AT LEAST ONE ALUMINATE SPINEL COMPOSITION HAVING THE FORMULA M(AIO2)2 OR MO.AL2O3, WHEREIN M IS SELECTED FROM THE GROUP CONSISTING OF GROUP IIA OR GROUP IIB METALS, SAID SUPPORT HAVING BEEN CALCINED AT A TEMPERATURE IN THE RANGE OF ABOUT 1500* TO ABOUT 2500*F. FOR FROM ABOUT 1 TO ABOUT 100 HOURS; AND AT LEAST ONE GROUP VIII METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, PLATINUM, PALLADIUM, RUTHENIUM, RUTHENIUM, I RHODIUM, AND OSMIUM.
Claim 3
Dependent Claim
34 words
A catalyst composition according to claim 1 wherein the amount of said Group VIII metal is in the range of about 0.01 to about 5 weight percent, based on weight of said calcined support.
Claim 4
Dependent Claim
32 words
A catalyst composition according to claim 2 further including at least one Group Ia metal and at least one tin group metal selected from the group consisting of tin, germanium or lead.
Claim 5
Dependent Claim
15 words
A catalyst composition according to claim 2 wherein said aluminate spinel is zinc aluminate spinel.
Claim 6
Dependent Claim
33 words
A catalyst composition according to claim 3 wherein said tin group metal is present in an amount in the range of about 0.01 to about 5 weight percent, based on weight of support.
Claim 7
Dependent Claim
14 words
A catalyst composition according to claim 5 wherein said tin group metal is tin.
Claim 8
Dependent Claim
14 words
A catalyst composition according to claim 6 wherein said Group VIII metal is platinum.
Claim 9
Dependent Claim
15 words
A catalyst composition according to claim 7 wherein said aluminate spinel is zinc aluminate spinel.
Claim 10
Dependent Claim
24 words
A catalyst composition according to claim 8 wherein said zinc aluminate spinel is calcined at a temperature of 2282* F. for about 12 hours.
Claim 11
Dependent Claim
44 words
A catalyst composition according to claim 9 wherein the amount of said platinum is 0.25 weight percent, the amount of said tin is 0.15 weight percent, and the Group Ia metal is lithium, said lithium being present in an amount of 0.25 weight percent.
References Cited (Backward Citations)
US3668151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |