US2769853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic defluorination process
Assignee: Phillips Petroleum Co
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Filing: 1951-09-21
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Granted: 1956-11-06
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Expires: 1971-09-21
Abstract
No abstract record available.
Inventors
- 👤 Hettick George Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:07
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/095; C07; C07C; C07C7/00; C07C7/148; C10G29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN THE DEFLUORINATION OF ORGANIC MATERIALS CONTAINING COMBINED FLUORINE AND HYDROCARBONS WHICH COMPRISES CONTACTING SAID MATERIALS WITH A SOLID DEFLUORINATING CATALYST SELECTED FROM THE GROUP CONSISTING OF BAUXITE, CARBON, AND METALLIC PACKING AT A TEMPERATURE IN THE RANGE OF 150 TO 300* F., AND AT A PRESSURE IN THE RANGE OF ATMOSPHERIC TO 500 P. S. I., THE IMPROVEMENT WHICH COMPRISES INTRODUCING TO SAID CATALYST, HYDROGEN FLUORIDE RESULTING FROM A HYDROCARBON CONVERSION OPERATION IN WHICH SAID HYDROGEN FLUORIDE HAS BEEN USED AS A HYDROCARBON CONVERSION CATALYST AND AS A RESULT OF WHICH USE SAID HYDROGEN FLUORIDE NOW CONTAINS HYDROGEN FLUORIDE SOLUBLE OILS AND WATER AS THE SOLE STEP OF SEPARATING HYDROGEN FLUORIDE FROM HYDROGEN FLUORIDE-SOLUBLE OILS.
Claim 2
Dependent Claim
116 words
IN THE DEFLUORINATION OF ORGANIC MATERIALS CONTAINING COMBINED FLUORINE AND HYDROCARBONS WHICH COMPRISES CONTACTING SAID MATERIALS WITH A SOLID DEFLUORINATING CATALYST SELECTED FROM THE GROUP CONSISTING OF BAUXITE, CARBON, AND METALLIC PACKING AT A TEMPERATURE IN THE RANGE OF 150 TO 300* F., AND AT A PRESSURE IN THE RANGE OF ATMOSPHERIC TO 500 P. S. I., THE IMPROVEMENT WHICH COMPRISES INTRODUCING TO SAID CATALYST, HYDROGEN FLUORIDE RESULTING FROM A HYDROCARBON CONVERSION OPERATION IN WHICH SAID HYDROGEN FLUORIDE HAS BEEN USED AS A HYDROCARBON CONVERSION CATALYST AND AS A RESULT OF WHICH USE SAID HYDROGEN FLUORIDE NOW CONTAINS HYDROGEN FLUORIDE SOLUBLE OILS AND WATER AS THE SOLE STEP OF SEPARATING HYDROGEN FLUORIDE FROM HYDROGEN FLUORIDE-SOLUBLE OILS.
References Cited (Backward Citations)
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US2458044A
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US2532492A
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US2636912A
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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) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |