US2600379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported group viii-carbon dehydrogenation catalyst
Assignee: Union Oil Company of California
•
Filing: 1945-11-09
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Granted: 1952-06-17
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Expires: 1965-11-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Doumani
- 👤 Roland F Deering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:37
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/002; B; B01; B01J; B01J27/00; B01J27/20; B01J27/22; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A CATALYST FOR THE DEHYDROGENATION OF HYDROCARBONS WHICH CONSISTS ESSENTIALLY OF A MAJOR PROPORTION OF A POROUS INACTIVE SUPPORTING MATERIAL AND MINOR PROPORTIONS OF CARBON AND A FREE GROUP VIII METAL, SAID CATALYST HAVING BEEN PREPARED BY A RPOCESS COMPRISING IMPREGNATING ON SAID SUPPORTING MATERIAL AN AQUEOUS SOLUTION OF A SALT OF SAID METAL, HEATING THE IMPREGNATED SUPPORTING MATERIAL TO CONVERT THE ADSORBED SALT TO THE OXIDE AND FOLLOWING THIS BY THE STEPS OF CARBON DEPOSITION BY DECOMPOSITION OF ETHYLENE THEREON PRIOR TO USE, AND REDUCTION TO THE FREE METAL WITH HYDROGEN AT AN ELEVATED TEMPERATURE, SAID CARBON DEPOSITION HAVING BEEN CARRIED OUT AT A TEMPERATURE IN EXCESS OF 400* FOR A SUFFICIENT TIME TO DECOMPOSE A MAJOR PROPORTION OF THE ETHYLENE.
Claim 2
Dependent Claim
122 words
A CATALYST FOR THE DEHYDROGENATION OF HYDROCARBONS WHICH CONSISTS ESSENTIALLY OF A MAJOR PROPORTION OF A POROUS INACTIVE SUPPORTING MATERIAL AND MINOR PROPORTIONS OF CARBON AND A FREE GROUP VIII METAL, SAID CATALYST HAVING BEEN PREPARED BY A RPOCESS COMPRISING IMPREGNATING ON SAID SUPPORTING MATERIAL AN AQUEOUS SOLUTION OF A SALT OF SAID METAL, HEATING THE IMPREGNATED SUPPORTING MATERIAL TO CONVERT THE ADSORBED SALT TO THE OXIDE AND FOLLOWING THIS BY THE STEPS OF CARBON DEPOSITION BY DECOMPOSITION OF ETHYLENE THEREON PRIOR TO USE, AND REDUCTION TO THE FREE METAL WITH HYDROGEN AT AN ELEVATED TEMPERATURE, SAID CARBON DEPOSITION HAVING BEEN CARRIED OUT AT A TEMPERATURE IN EXCESS OF 400* FOR A SUFFICIENT TIME TO DECOMPOSE A MAJOR PROPORTION OF THE ETHYLENE.
References Cited (Backward Citations)
US1999573A
Cited
US2166266A
Cited
US2377512A
Cited
US2425754A
Cited
US2387088A
Cited
US2365029A
Cited
US2370797A
Cited
US2400012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |