US3341620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dimerization of ethylene over nickel oxide-silica-alumina catalyst
Assignee: Phillips Petroleum Co
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Filing: 1964-12-07
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Granted: 1967-09-12
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Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Clark Alfred
- 👤 Jack N Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:04
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/10; B01J37/00; B01J37/02; B01J37/0201; C07C2521/00; C07C2521/12; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN A PROCESS FOR DIMERIZING ETHYLENE OVER A NICKEL OXIDE-SILICA-ALUMINA CATALYST TO PRODUCE 1-BUTENE AND 2BUTENES, THE METHOD OF INCRESING THE YIELD OF 1-BUTENE WHICH COMPRISES PRETRATING SAID CATALYST WITH GASEOUS AMMONIA IN AN AMOUNT IN THE RANGE OF 0.06 TO 0.18X10**3 MOLES PER GRAM OF CATALYST AT A TEMPERATURE IN THE RANGE OF 175 TO 300*C.
Claim 2
Dependent Claim
57 words
IN A PROCESS FOR DIMERIZING ETHYLENE OVER A NICKEL OXIDE-SILICA-ALUMINA CATALYST TO PRODUCE 1-BUTENE AND 2BUTENES, THE METHOD OF INCRESING THE YIELD OF 1-BUTENE WHICH COMPRISES PRETRATING SAID CATALYST WITH GASEOUS AMMONIA IN AN AMOUNT IN THE RANGE OF 0.06 TO 0.18X10**3 MOLES PER GRAM OF CATALYST AT A TEMPERATURE IN THE RANGE OF 175 TO 300*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |