US4231898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming with multimetallic catalysts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1979-06-29
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Granted: 1980-11-04
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Expires: 1999-06-29
Abstract
Abstract A process for the synthesis of copper-containing catalysts by preforming an inorganic oxide support, or carrier, preferably an alumina support, impregnating said support with a copper-containing halogen acid solution, neutralizing said halogen acid treated copper-containing support, and then impregnating said neutralized support with the desired hydrogenation-dehydrogenation components.
Inventors
- 👤 Charles H. Mauldin
- 👤 William C. Baird, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:28
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8933; B01J23/8986; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
52 words
A process for the preparation of copper-containing catalysts which comprises forming an inorganic oxide support, impregnating said support by contact thereof with a copper-containing halogen acid solution, neutralizing said halogen acid treated, copper-containing support, and then impregnating said copper-containing support by contact thereof with a solution containing one or more hydrogenation-dehydrogenation components.
Claim 2
Dependent Claim
52 words
A process for the preparation of copper-containing catalysts which comprises forming an inorganic oxide support, impregnating said support by contact thereof with a copper-containing halogen acid solution, neutralizing said halogen acid treated, copper-containing support, and then impregnating said copper-containing support by contact thereof with a solution containing one or more hydrogenation-dehydrogenation components.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein the inorganic oxide support is alumina.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein the halogen acid is hydrogen chloride.
Claim 5
Dependent Claim
17 words
The process of claim 1 wherein the halogen acid treated copper-containing support is neutralized with ammonium hydroxide.
Claim 6
Dependent Claim
20 words
The process of claim 1 wherein the hydrogenation-dehydrogenation components are comprised of Group VIII noble metals and Group VII-B metals.
Claim 7
Dependent Claim
47 words
The process of claim 1 wherein the inorganic oxide support is alumina, the halogen acid is hydrogen chloride, the halogen acid treated copper-containing support is neutralized with ammonium hydroxide, and the Group VIII noble metals are platinum, palladium and iridium and the Group VII-B metal is rhenium.
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) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |