Patent US2759032A successfully refreshed from Google Patents.
US2759032A
Expired / Lapsed
US
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Defluorination of reaction products
Assignee: Phillips Petroleum Co
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Filing: 1953-05-04
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Granted: 1956-08-14
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Rolland E Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
C; C07; C07C; 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
140 words
IN A PROCES FOR THE CONVERSION OF HYDROCARBONS IN THE PRESENCE OF A HYDROFLUORIC ACID CATALYST, THE STEPS WHICH COMPRISE INTRODUCING THE EFFLUENT OF SUCH A CONVERSION INTO A SEPARATING ZONE AND THEREIN SEPARATING LIQUID HYDROFLUORIC ACID FROM LIQUID HYDROCARBONS; PASSING SAID LIQUID HYDROCARBONS TO A FRACTIONAL DISTILLATION ZONE; SEPARATING FROM SAID DISTILLATION ZONE A VAPOROUS FRACTION COMPRISING HYDROFLUORIC ACID AND LOW-BOILING PARAFFINIC HYDROCRBONS, AND A LIQUID HYDROCARBONS FRACTION CONTAINING. DISSOLVED ORGANIC FLUORINE COMPOUNDS; HEATING SAID LIQUID FRACTION FOR A PERIOD OF TIME AND TO A TEMPERATURE SUFFICIENT TO DECOMPOSE SAID ORGANIC FLUORINE COMPOUNDS AND FORM VAPORS CONTAINING VAPOROUS HYDROFLUORIC ACID; RECOVERING SAID LIQUID FRACTION ESSENTIALLY FREE OF ORGANIC FLUORINE COMPOUNDS AND CONTAINING HIGHER BOILING PARAFFINIC HYDROCARBONS; AND PASSING SAID VAPORS CONTAINING VAPOROUS HYDROFLUORIC ACID TO SAID DISTILLATION ZONE AT A RATE AND TEMPERATURE SUFFICIENT TO SUPPLY THE REBOILING HEAT.
Claim 2
Dependent Claim
140 words
IN A PROCES FOR THE CONVERSION OF HYDROCARBONS IN THE PRESENCE OF A HYDROFLUORIC ACID CATALYST, THE STEPS WHICH COMPRISE INTRODUCING THE EFFLUENT OF SUCH A CONVERSION INTO A SEPARATING ZONE AND THEREIN SEPARATING LIQUID HYDROFLUORIC ACID FROM LIQUID HYDROCARBONS; PASSING SAID LIQUID HYDROCARBONS TO A FRACTIONAL DISTILLATION ZONE; SEPARATING FROM SAID DISTILLATION ZONE A VAPOROUS FRACTION COMPRISING HYDROFLUORIC ACID AND LOW-BOILING PARAFFINIC HYDROCRBONS, AND A LIQUID HYDROCARBONS FRACTION CONTAINING. DISSOLVED ORGANIC FLUORINE COMPOUNDS; HEATING SAID LIQUID FRACTION FOR A PERIOD OF TIME AND TO A TEMPERATURE SUFFICIENT TO DECOMPOSE SAID ORGANIC FLUORINE COMPOUNDS AND FORM VAPORS CONTAINING VAPOROUS HYDROFLUORIC ACID; RECOVERING SAID LIQUID FRACTION ESSENTIALLY FREE OF ORGANIC FLUORINE COMPOUNDS AND CONTAINING HIGHER BOILING PARAFFINIC HYDROCARBONS; AND PASSING SAID VAPORS CONTAINING VAPOROUS HYDROFLUORIC ACID TO SAID DISTILLATION ZONE AT A RATE AND TEMPERATURE SUFFICIENT TO SUPPLY THE REBOILING HEAT.
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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |