US3249649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic alkylation
Assignee: Phillips Petroleum Co
•
Filing: 1963-02-28
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Granted: 1966-05-03
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Fred T Sherk
- 👤 Rolland E Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:24
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A PROCESS FOR CATALYTIC ALKYLATION WHICH COMPRISES: INTRODUCING AS THE REACTION MIXTURE, ALKYLATABLE MATERIAL, ALKYLATING AGENT AND ALKYLATION CATALYST INTO ONE END OF AN ELONGATED REACTION ZONE, SUBJECTING SAID REACTION MIXTURE TO ALKYLATION CONDITIONS IN SAID ZONE, SEPARATING OUT A SUBSTANTIALLY CATALYST FREE PHASE FROM SAID REACTION MIXTURE AT A PLURALITY OF SPACED POINTS WITHIN SAID REACTION ZONE, INTRODUCING ALKYLATING AGENT INTO SAID SEPARATED PHASE OUT OF CONTACT OF CATALYST AT EACH OF SAID SPACED POINTS AND THEN INTRODUCING THE MIXTURE THUS FORMED INTO REACTION MIXTURE CONTAINING CATALYST TO EFFECT FURTHER ALKYLATION, THUS MAINTAINING A HIGH RATIO OF ALKYLATABLE MATERIAL TO ALKYLATING AGENT THROUGHOUT THE LENGTH OF SAID REACTION ZONE, REMOVING A REACTION EFFLUENT COMPRISING ALKYLATE, UNREACTED MATERIALS AND CATALYST FROM THE OTHER END OF SAID REACTION ZONE, AND PASSING SAME TO A SETTLING ZONE, AND SEPARATELY RECOVERING AN ALKYLATE PHASE AND A CATALYST PHASE FROM SAID SETTLING ZONE.
Claim 2
Dependent Claim
149 words
A PROCESS FOR CATALYTIC ALKYLATION WHICH COMPRISES: INTRODUCING AS THE REACTION MIXTURE, ALKYLATABLE MATERIAL, ALKYLATING AGENT AND ALKYLATION CATALYST INTO ONE END OF AN ELONGATED REACTION ZONE, SUBJECTING SAID REACTION MIXTURE TO ALKYLATION CONDITIONS IN SAID ZONE, SEPARATING OUT A SUBSTANTIALLY CATALYST FREE PHASE FROM SAID REACTION MIXTURE AT A PLURALITY OF SPACED POINTS WITHIN SAID REACTION ZONE, INTRODUCING ALKYLATING AGENT INTO SAID SEPARATED PHASE OUT OF CONTACT OF CATALYST AT EACH OF SAID SPACED POINTS AND THEN INTRODUCING THE MIXTURE THUS FORMED INTO REACTION MIXTURE CONTAINING CATALYST TO EFFECT FURTHER ALKYLATION, THUS MAINTAINING A HIGH RATIO OF ALKYLATABLE MATERIAL TO ALKYLATING AGENT THROUGHOUT THE LENGTH OF SAID REACTION ZONE, REMOVING A REACTION EFFLUENT COMPRISING ALKYLATE, UNREACTED MATERIALS AND CATALYST FROM THE OTHER END OF SAID REACTION ZONE, AND PASSING SAME TO A SETTLING ZONE, AND SEPARATELY RECOVERING AN ALKYLATE PHASE AND A CATALYST PHASE FROM SAID SETTLING ZONE.
Claim 3
Independent Claim
23 words
AN APPARATUS FOR ALKYLATION COMPRISING, IN COMBINATION, A VERTICALLY EXTENDING ELONGATED REACTION CHAMBER, A SETTLING CHAMBER IN OPEN COMMUNICATION WITH SAID REACTION CHAMBER,
Claim 4
Independent Claim
23 words
AN APPARATUS FOR ALKYLATION COMPRISING, IN COMBINATION, A VERTICALLY EXTENDING ELONGATED REACTION CHAMBER, A SETTLING CHAMBER IN OPEN COMMUNICATION WITH SAID REACTION CHAMBER,
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |