US4595673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation catalyst compositions and method of their preparation
Assignee: Honeywell UOP LLC
•
Filing: 1984-11-29
•
Granted: 1986-06-17
•
Expires: 2004-11-29
Abstract
Abstract A novel hydrocarbon conversion catalyst is disclosed. Additionally, a method of preparing the catalyst and a process for its use are disclosed. The catalyst comprises a platinum group component, a Group IVA component and an alkali component on a carrier material. The alkali component further comprises from about 0.05 to about 10.0 wt. %, on the weight of the composite, of a second alkali metal. The catalyst has particular utility as a dehydrogenation catalyst.
Inventors
- 👤 Tamotsu Imai
- 👤 Hayim Abrevaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:35
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/62; B01J23/622; C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
53 words
A catalytic composite comprising a platinum component, a tin component and an alkali component on alumina, wherein the alkali component comprises from about 0.05 to 2.0 wt. %, on the weight of the composite, of lithium and from about 0.05 to about 3.0 wt. %, on the weight of the composite, of potassium.
Claim 2
Dependent Claim
53 words
A catalytic composite comprising a platinum component, a tin component and an alkali component on alumina, wherein the alkali component comprises from about 0.05 to 2.0 wt. %, on the weight of the composite, of lithium and from about 0.05 to about 3.0 wt. %, on the weight of the composite, of potassium.
Claim 3
Dependent Claim
31 words
The catalytic composite of claim 1 further characterized in that it comprises from about 0.01 to about 2.0 wt. % of the platinum component based on the weight of the composite.
Claim 4
Dependent Claim
32 words
The catalytic composite of claim 1 further characterized in that it comprises from about 0.2 to about 2.0 wt. % of the Group IVA component based on the weight of the composite.
Claim 5
Dependent Claim
15 words
The catalytic composite of claim 1 further characterized in that the carrier material comprises alumina.
Claim 6
Dependent Claim
15 words
The catalytic composite of claim 1 further characterized in that it comprises a halogen component.
Claim 7
Dependent Claim
15 words
The catalytic composite of claim 1 further characterized in that it comprises an indium component.
Claim 8
Dependent Claim
15 words
The catalytic composite of claim 1 further characterized in that is comprises a gallium component.
Claim 9
Dependent Claim
15 words
The catalytic composite of claim 1 further characterized in that it comprises a thallium component.
Claim 10
Independent Claim
68 words
A method of preparing a catalytic composite comprising compositing a carrier material with a platinum component, a tin component, sufficient lithium to result in a lithium content of from about 0.05 to about 2.0 wt. %, based on the weight of the composite, and sufficient potassium to result in a potassium content of from about 0.05 to about 3.0 wt. %, based on the weight of the composite.
Claim 11
Independent Claim
68 words
A method of preparing a catalytic composite comprising compositing a carrier material with a platinum component, a tin component, sufficient lithium to result in a lithium content of from about 0.05 to about 2.0 wt. %, based on the weight of the composite, and sufficient potassium to result in a potassium content of from about 0.05 to about 3.0 wt. %, based on the weight of the composite.
Claim 12
Dependent Claim
20 words
The method of claim 9 further characterized in that the lithium is composited by impregnation with a lithium chloride solution.
Claim 13
Dependent Claim
20 words
The method of claim 9 further characterized in that the lithium is composited by impregnation with a lithium nitrate solution.
Claim 14
Dependent Claim
20 words
The method of claim 9 further characterized in that the potassium is composited by impregnation with a potassium chloride solution.
Claim 15
Dependent Claim
20 words
The method of claim 9 further characterized in that the potassium is composited by means of a potassium nitrate solution.
Claim 16
Dependent Claim
19 words
The catalytic composite of claim 1 wherein the molar ratio of potassium to platinum is at least about 10:1.
Claim 17
Dependent Claim
19 words
The catalytic composite of claim 14 wherein the molar ratio of potassium to lithium is at least about 0.30:1.
Claim 18
Dependent Claim
18 words
The method of claim 9 wherein the molar ratio of potassium to platinum is at least about 10:1.
Claim 19
Dependent Claim
18 words
The method of claim 16 wherein the molar ratio of potassium to lithium is at least about 0.30:1.
References Cited (Backward Citations)
US2479110A
Cited
US2479109A
Cited
US2930763A
Cited
US3531543A
Cited
US3745112A
Cited
US3892657A
Cited
US3909451A
Cited
US3996304A
Cited
GB1499297A
Cited
US4329258A
Cited
US4363721A
Cited
US4506032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |