US3215752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation process
Assignee: Standard Oil Co
•
Filing: 1963-05-03
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Granted: 1965-11-02
•
Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Willas L Vermilion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:58
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911; Y10S585/919; Y10S585/921; Y10S585/924; Y10S585/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A PROCESS FOR ALKYLATING A SATURATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PARAFFINIC AND NAPHTHENIC HYDROCARBONS CONTAINING TERTIARY CARBON ATOMS, WITH OLEFINS INTHE PRESENCE OF AN ACID CATALYST SELECTED FROM THE GROUP CONSISTING OF SULPHURIC AND HYDROFLURIC ACIDS, WHICH INCLUDES THE STEPS OF: INTRODUCING THE RECTANTS AND CATALYST INTO A PORTION OF A RECTIFYING COLUMN, SAID JPORTION BEING REFERRED TO HEREINAFTER AS A REACTION ZONE AND CONSTITUTING THE ONLY REACTION ZONE IN SAID COLUMN; MAINTAINING THE CONCENTRATION OF SAID SATURATED HYDROCARBON IN SAID REACTION ZONE AT A VALUE WITHIN THE RANGE OF 85-95% OF TOTAL HYDROCARBONS PRESENT; REMOVING AN ALKYLATE RICH STEAM FROM SAID REACTION ZONE AND DOWN SAID RECTIFYING COLUMN; REMOVING A VAPOR STREAM RICH IN SAID SATURATED HYDROCARBON FROM SAID REACTION ZONE AND UP SAID RECTIFYING COLUMN; AND RECYCLING AS REFLUX TO THE TOP OF SAID RECTIFYING COLUMN,
Claim 2
Dependent Claim
142 words
IN A PROCESS FOR ALKYLATING A SATURATED HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF PARAFFINIC AND NAPHTHENIC HYDROCARBONS CONTAINING TERTIARY CARBON ATOMS, WITH OLEFINS INTHE PRESENCE OF AN ACID CATALYST SELECTED FROM THE GROUP CONSISTING OF SULPHURIC AND HYDROFLURIC ACIDS, WHICH INCLUDES THE STEPS OF: INTRODUCING THE RECTANTS AND CATALYST INTO A PORTION OF A RECTIFYING COLUMN, SAID JPORTION BEING REFERRED TO HEREINAFTER AS A REACTION ZONE AND CONSTITUTING THE ONLY REACTION ZONE IN SAID COLUMN; MAINTAINING THE CONCENTRATION OF SAID SATURATED HYDROCARBON IN SAID REACTION ZONE AT A VALUE WITHIN THE RANGE OF 85-95% OF TOTAL HYDROCARBONS PRESENT; REMOVING AN ALKYLATE RICH STEAM FROM SAID REACTION ZONE AND DOWN SAID RECTIFYING COLUMN; REMOVING A VAPOR STREAM RICH IN SAID SATURATED HYDROCARBON FROM SAID REACTION ZONE AND UP SAID RECTIFYING COLUMN; AND RECYCLING AS REFLUX TO THE TOP OF SAID RECTIFYING COLUMN,
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |