Patent US3370103A successfully refreshed from Google Patents.
US3370103A
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Process for preparing diolefins
Assignee: Standard Oil Co
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Filing: 1962-11-28
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Granted: 1968-02-20
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 James L Callahan
- 👤 Ernest C Milberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:32
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; C; C07; C07C; C07C5/00; C07C5/42; C07C5/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS FOR PREPARING A DIOLEFIN COMPRISING FEEDING A REACTANT MIXTURE COMPRISING A MONOOLEFIN FREE OF QUATERNARY CARBON ATOMS HAVING FROM 4 TO 8 CARBON ATOMS, AT LEAST FOUR OF WHICH ARE ARRANGED IN A SERIES IN A STRAIGHT CHAIN, AND OXYGEN TO A LOWER PORTION OF A VERTICAL REACTOR CONTAINING A SERIES OF COMMUNICATING COMPARTMENTS EACH COMMUNICATED WITH AND BEING SEPARATED FORM THE NEXT ADJACENT COMPARTMENT BY A FORAMINOUS MEMBER CONTAINING A FLUIDIZED SOLIDS CATALYST IN EACH COMPARTMENT AT AN ELEVATED TEMPERATURE AND AT A PRESSURE OF FROM ABOUT 1 TO 3 ATMOSPHERES AND PASSING THE REACTANT VAPOR UPWARD THROUGH THE SUCCESSIVE COMPARTMENTS CONTAINING THE FLUIDIZED CATALYST, MAINTIANING A CONTACT TIME OF FROM 0.1 TO 50 SECONDS AND RECOVERING THE DIOLEFIN FROM THE TOP PORTION OF THE REACTOR.
Claim 2
Dependent Claim
129 words
A PROCESS FOR PREPARING A DIOLEFIN COMPRISING FEEDING A REACTANT MIXTURE COMPRISING A MONOOLEFIN FREE OF QUATERNARY CARBON ATOMS HAVING FROM 4 TO 8 CARBON ATOMS, AT LEAST FOUR OF WHICH ARE ARRANGED IN A SERIES IN A STRAIGHT CHAIN, AND OXYGEN TO A LOWER PORTION OF A VERTICAL REACTOR CONTAINING A SERIES OF COMMUNICATING COMPARTMENTS EACH COMMUNICATED WITH AND BEING SEPARATED FORM THE NEXT ADJACENT COMPARTMENT BY A FORAMINOUS MEMBER CONTAINING A FLUIDIZED SOLIDS CATALYST IN EACH COMPARTMENT AT AN ELEVATED TEMPERATURE AND AT A PRESSURE OF FROM ABOUT 1 TO 3 ATMOSPHERES AND PASSING THE REACTANT VAPOR UPWARD THROUGH THE SUCCESSIVE COMPARTMENTS CONTAINING THE FLUIDIZED CATALYST, MAINTIANING A CONTACT TIME OF FROM 0.1 TO 50 SECONDS AND RECOVERING THE DIOLEFIN FROM THE TOP PORTION OF THE REACTOR.
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |