Patent US4595180A successfully refreshed from Google Patents.
Patent US2843350A successfully refreshed from Google Patents.
Patent US3096353A successfully refreshed from Google Patents.
US4053533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of acetylenic impurities with copper manganite catalyst
Assignee: Phillips Petroleum Co
•
Filing: 1975-10-15
•
Granted: 1977-10-11
•
Expires: 1995-10-15
Abstract
Abstract Acetylenic compounds are selectively removed from hydrocarbon mixtures containing same by oxidation in the presence of a solid copper-manganese-oxygen catalyst. In one embodiment, acetylenic compounds are selectively removed from a conjugated diene mixture containing same by contacting oxygen and a mixture with a copper manganite catalyst under oxidizing conditions.
Inventors
- 👤 Lewis E. Drehman
- 👤 Floyd Farha, Jr.
- 👤 Arlo J. Moffat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:34
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/14808; C07C7/14816; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
82 words
A process for the selective removal of acetylenic contaminants or impurities present in hydrocarbon streams which comprises contacting oxygen and a hydrocarbon-containing mixture contaminated with acetylenic compounds with a catalyst consisting essentially of copper, manganese, and oxygen in which the atomic ratio of copper to manganese varies from about 0.25:1 to about 4:1 under oxidation conditions including a temperature and a mol ratio of oxygen to hydrocarbon sufficient to selectively remove a substantial portion of said acetylenic compounds present in said mixture.
Claim 2
Dependent Claim
82 words
A process for the selective removal of acetylenic contaminants or impurities present in hydrocarbon streams which comprises contacting oxygen and a hydrocarbon-containing mixture contaminated with acetylenic compounds with a catalyst consisting essentially of copper, manganese, and oxygen in which the atomic ratio of copper to manganese varies from about 0.25:1 to about 4:1 under oxidation conditions including a temperature and a mol ratio of oxygen to hydrocarbon sufficient to selectively remove a substantial portion of said acetylenic compounds present in said mixture.
Claim 3
Dependent Claim
44 words
A process according to claim 1 wherein said contacting is effected at a temperature ranging from about 250°-800° F., a reaction pressure ranging from 0.5-500 psig, an oxygen to hydrocarbon mol ratio ranging from 0.01-0.2, and a steam to hydrocarbon mol ratio of 0-100.
Claim 4
Dependent Claim
11 words
A process according to claim 1 wherein the mixture comprises butadiene.
Claim 5
Dependent Claim
28 words
A process according to claim 1 wherein said contacting is effected in the presence of oxygen and steam at a temperature in the range of about 400°-650° F.
Claim 6
Dependent Claim
50 words
A process according to claim 1 wherein said mixture is a butadiene mixture obtained as the effluent from the oxidative dehydrogenation of olefins and the effluent contains oxygen, steam, and 1-acetylenes, as well as butadiene, and the contacting is effected at a temperature in the range of about 400°-650° F.
Claim 7
Dependent Claim
50 words
A process according to claim 1 wherein the catalyst is at least one composition having the formula Cu 3 Mn 2 O 6 , Cu 2 Mn 2 O 5 , CuMnO 2 , CuMn 2 O 3 , CuMn 3 O 4 , and CuMn 2 O 4 .
Claim 8
Dependent Claim
15 words
A process according to claim 1 wherein said catalyst is CuMn 2 O 4 .
References Cited (Backward Citations)
SU193664A1
Cited
US1971168A
Cited
US2381707A
Cited
US2408970A
Cited
US2426604A
Cited
US3202727A
Cited
US3327013A
Cited
US3549719A
Cited
US3663457A
Cited
US3634536A
Cited
US3922318A
Cited
US3897511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |