Patent US209625A successfully refreshed from Google Patents.
Patent US2789907A successfully refreshed from Google Patents.
Patent US4191846A successfully refreshed from Google Patents.
US4191846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation process
Assignee: Phillips Petroleum Co
•
Filing: 1976-01-12
•
Granted: 1980-03-04
•
Expires: 1996-01-12
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, tin and a metal selected from the group consisting of gold and silver deposited on a support such as alumina, silica or a Group II aluminate spinel.
Inventors
- 👤 Floyd Farha, Jr.
- 👤 Lewis E. Drehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:43
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8933; B01J23/8966; B01J23/38; B01J23/54; B01J23/66
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
111 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 composition consisting essentially of: (a) a metal selected from the group consisting of nickel, palladium, platinum, iridium, osmium and mixtures thereof; (b) tin; and, (c) a metal selected from the group consisting of gold and silver and mixtures thereof; each of said (a), (b) and (c) being supported on a support selected from the group consisting of alumina, silica, magnesia, zirconia, alumino-silicates, Group II aluminate spinels and mixtures thereof.
Claim 2
Dependent Claim
111 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 composition consisting essentially of: (a) a metal selected from the group consisting of nickel, palladium, platinum, iridium, osmium and mixtures thereof; (b) tin; and, (c) a metal selected from the group consisting of gold and silver and mixtures thereof; each of said (a), (b) and (c) being supported on a support selected from the group consisting of alumina, silica, magnesia, zirconia, alumino-silicates, Group II aluminate spinels and mixtures thereof.
Claim 3
Dependent Claim
69 words
The process of claim 1 wherein said metal (a) is present in said composition in an amount ranging from about 0.1 to about 5 weight percent of said support; said tin is present in an amount ranging from about 0.01 to about 5 weight percent of said support; and said metal (c) is present in an amount ranging from about 0.1 to about 5 weight percent of said support.
Claim 4
Dependent Claim
44 words
The process of claim 2 wherein the mol ratio of said metal (a) to said tin is in the range of 10:1 to 1:10 and the mol ratio of said metal (a) to said metal (c) is in the range of 10:1 to 1:10.
Claim 5
Dependent Claim
11 words
The process of claim 3 wherein said metal (a) is platinum.
Claim 6
Dependent Claim
11 words
The process of claim 4 wherein said metal (c) is gold.
Claim 7
Dependent Claim
11 words
The process of claim 4 wherein said metal (c) is silver.
Claim 8
Dependent Claim
13 words
The process of claim 4 wherein the mol ratio Pt:Sn:(c) is approximately 1:3:1.
Claim 9
Dependent Claim
12 words
The process of claim 4 wherein said support is zinc aluminate spinel.
Claim 10
Dependent Claim
51 words
The process of claim 2 wherein said metal (a) is present in an amount ranging from 0.1 to 1 weight percent; said tin is present in an amount ranging from 0.1 to 2 weight percent and said metal (c) is present in an amount ranging from 0.1 to 2 weight percent.
Claim 11
Dependent Claim
44 words
The process of claim 3 wherein the mol ratio of said metal (a) to said tin is in the range of 2:1 to 1:5 and the mol ratio of said metal (a) to said metal (c) is in the range of 2:1 to 1:3.
Claim 12
Dependent Claim
34 words
The process of claim 3 wherein the mol ratio of said metal (a) to said tin is about 1:3 and the mol ratio of said metal (a) to said metal (c) is about 1:1.
Claim 13
Dependent Claim
34 words
The process of claim 5 wherein the amount of said platinum is 0.6 weight percent, the amount of said tin is 1.0 weight percent and the amount of said gold is 0.6 weight percent.
Claim 14
Dependent Claim
34 words
The process of claim 6 wherein the amount of said platinum is 0.6 weight percent, the amount of said tin is 1.0 weight percent and the amount of said silver is 0.4 weight percent.
Claim 15
Dependent Claim
49 words
The process of claim 1 wherein said organic compound is contacted with said catalyst at a temperature in the approximate range of 750° to 1250° F., a space velocity in the approximate range of 200 to 10,000 and a steam to organic compound ratio of about 0.5:1 to 30:1.
References Cited (Backward Citations)
US3156735A
Cited
US3562346A
Cited
US3585253A
Cited
US3670044A
Cited
US3692701A
Cited
US3789020A
Cited
US3766291A
Cited
US3932548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |