US3882001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for electrochemically forming fluorocarbon compounds
Assignee: Phillips Petroleum Co
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Filing: 1973-11-30
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Granted: 1975-05-06
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Expires: 1993-11-30
Abstract
Abstract A method and apparatus for forming fluorocarbon compounds in an electrochemical cell while protecting the anode of said cell.
Inventors
- 👤 King L Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:48
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/27; C25B3/28; C25B3/01; C25B3/07; C25B3/11
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
A METHOD FOR FORMING A FLUOROCARBON COMPOUND, COMPRISING: INJECTING A VAPORIZED RECYCLE FEED STREAM COMPRISIG A MIXTURE OF A FLUORONATABLE ORGANIC COMPOUND AND A PARTIALLY UNREACTED FLOORINATED COMPOUND, SAID RECYCLE FEED STREAM CONTAINING 5-50 WEIGHT PERCENT HYDROGEN FLUORIDE, INTO AN ELECTROLYTE OF AN ELECTROCHEMICAL FLUORINATION CELL AT ALOCATION WITHIN SAID ELECTROLYTE AND ADJACENT A PLENUM CHAMBER WITHIN AN ANODE; PASSING ALL OF SAID HYDROGEN FLUORODE-CONTAINING RECYCLE FEED THROUGH THE ELECTROLYTE AND INTO CONTACT WITH SAID ANODE OF THE CELL FOR FLUORINATING AT LEAST A PORTION OF THE FLUORINATABLE ORGANIC COMPOUND AND THE PARTIALLY UNREACTED FLUORINATED COMPOUND OF SAID MIXTURE; RECOVERING RESULTANT GASES FROM THE CELL; SEPARATING SAID FLUORINATABLE ORGANIC COMPOUND AND SAID PARTIALLY UNREACTED FLUORINATED COMPOUND FROM SAID RESULTANT GASES FOR SAID RECYCLE; AND SEPARATING AND RECOVERING SAID FLUOROCARBON COMPOUND FROM SAID RESULTANT GASES.
Claim 2
Independent Claim
134 words
A METHOD FOR FORMING A FLUOROCARBON COMPOUND, COMPRISING: INJECTING A VAPORIZED RECYCLE FEED STREAM COMPRISIG A MIXTURE OF A FLUORONATABLE ORGANIC COMPOUND AND A PARTIALLY UNREACTED FLOORINATED COMPOUND, SAID RECYCLE FEED STREAM CONTAINING 5-50 WEIGHT PERCENT HYDROGEN FLUORIDE, INTO AN ELECTROLYTE OF AN ELECTROCHEMICAL FLUORINATION CELL AT ALOCATION WITHIN SAID ELECTROLYTE AND ADJACENT A PLENUM CHAMBER WITHIN AN ANODE; PASSING ALL OF SAID HYDROGEN FLUORODE-CONTAINING RECYCLE FEED THROUGH THE ELECTROLYTE AND INTO CONTACT WITH SAID ANODE OF THE CELL FOR FLUORINATING AT LEAST A PORTION OF THE FLUORINATABLE ORGANIC COMPOUND AND THE PARTIALLY UNREACTED FLUORINATED COMPOUND OF SAID MIXTURE; RECOVERING RESULTANT GASES FROM THE CELL; SEPARATING SAID FLUORINATABLE ORGANIC COMPOUND AND SAID PARTIALLY UNREACTED FLUORINATED COMPOUND FROM SAID RESULTANT GASES FOR SAID RECYCLE; AND SEPARATING AND RECOVERING SAID FLUOROCARBON COMPOUND FROM SAID RESULTANT GASES.
Claim 3
Dependent Claim
44 words
A method, as set forth in claim 1, wherein the fluorinatable compound is one of hydrocarbons having 1-6 carbon atoms per molecule, alcohols having 1-3 carbon atoms, ethers having 2-6 carbon atoms, ketones having 2-6 carbon atoms, or carboxylic acids having 1-3 carbon atoms.
Claim 4
Dependent Claim
17 words
A method, as set forth in claim 1, wherein said feed contains in addition makeup hydrocarbons .
Claim 5
Dependent Claim
32 words
A method, as set forth in claim 1, wherein the partially fluorinated compound stream passed into the cell is in the liquid phase and is vaporized prior to contact with said anode.
Claim 6
Dependent Claim
34 words
A method, as set forth in claim 1, wherein the fluorinatable organic compound is separated from the resultant gases by cooling said resultant gases and thereafter passing the cooled resultant gases through a separator.
Claim 7
Dependent Claim
39 words
A method, as set forth in claim 1, wherein the electrolyte is a mixture comprising potassium fluoride and hydrogen fluoride and wherein said hydrogen fluoride is said partially fluorided compound feed stream is reduced by at least 50 percent.
Claim 8
Dependent Claim
30 words
A method according to claim 1 wherein said recycle feed stream is introduced into said electrolyte at a point 0.5 to 4 inches below a lowermost extension of said anode.
References Cited (Backward Citations)
US3558450A
Cited
US3660255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |