US3073877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defluorination of hf alkylation reactor product
Assignee: Phillips Petroleum Co
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Filing: 1960-04-05
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Granted: 1963-01-15
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Expires: 1980-04-05
Abstract
No abstract record available.
Inventors
- 👤 Fred T Sherk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:40
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/04; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN THE PROCESS OF ALKYLATING AN ALKYLATABLE HYDROCARBON WITH AN ALKYLATING AGENT IN THE PRESENCE OF A HYDROFLUORIC ACID CATALYST WHEREIN THE ALKYLATION REACTION EFFLUENT SEPARATED FROM THE HYDROFLUORIC ACID CATALYST AND CONSISTING ESSENTIALLY OF HYDROCARBONS, CONTAINING ORGANIC FLUORINE COMPOUNDS, IS FRACTIONALLY DISTILLED STEPWISE TO REMOVE PROPANE AND LIGHTER COMPOUNDS IN ONE STEP AND TO REMOVE NORMAL BUTANE THEREFROM IN ANOTHER STEP, THE IMPROVEMENT COMPRISING CONDENSING THE OVERHEAD PRODUCTS FROM THE FIRST DISTILLATION STEP; COLLECTING THE CONDENSATE SO AS TO FORM A LIQUID HYDROCARBON PHASE AND A LIQUID HYDROFLUORIC ACID PHASE; REMOVING THE HYDROCARBON PHASE OF REDUCED ORGANIC FLUORINE COMPOUND CONTENT; ADDING A STREAM CONSISTING ESSENTIALLY OF SAID HY-
Claim 2
Dependent Claim
109 words
IN THE PROCESS OF ALKYLATING AN ALKYLATABLE HYDROCARBON WITH AN ALKYLATING AGENT IN THE PRESENCE OF A HYDROFLUORIC ACID CATALYST WHEREIN THE ALKYLATION REACTION EFFLUENT SEPARATED FROM THE HYDROFLUORIC ACID CATALYST AND CONSISTING ESSENTIALLY OF HYDROCARBONS, CONTAINING ORGANIC FLUORINE COMPOUNDS, IS FRACTIONALLY DISTILLED STEPWISE TO REMOVE PROPANE AND LIGHTER COMPOUNDS IN ONE STEP AND TO REMOVE NORMAL BUTANE THEREFROM IN ANOTHER STEP, THE IMPROVEMENT COMPRISING CONDENSING THE OVERHEAD PRODUCTS FROM THE FIRST DISTILLATION STEP; COLLECTING THE CONDENSATE SO AS TO FORM A LIQUID HYDROCARBON PHASE AND A LIQUID HYDROFLUORIC ACID PHASE; REMOVING THE HYDROCARBON PHASE OF REDUCED ORGANIC FLUORINE COMPOUND CONTENT; ADDING A STREAM CONSISTING ESSENTIALLY OF SAID HY-
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |