US3655535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-porosity electrode for electrochemical conversion
Assignee: Phillips Petroleum Co
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Filing: 1970-09-24
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Granted: 1972-04-11
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Expires: 1990-09-24
Abstract
Abstract In an electrochemical process, the reaction takes place within the confines of a porous electrode element having a core section which is relatively impervious to the electrolyte and an outer section in contact with the electrolyte which has relatively large pores.
Inventors
- 👤 Forrest N Ruehlen
- 👤 Homer M Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:25
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/27; C25B3/28; C25B11/00; C25B11/02; C25B11/03; C25B11/031; C25B3/01; C25B3/03; C25B3/07
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
23 words
A process according to claim 1 wherein said first electrode element is an anode and said second porous electrode element is a cathode.
Claim 2
Dependent Claim
48 words
A process according to claim 2 wherein: said core section of said cathode has an average pore diameter within the range of from 0.01 to 35 microns; and said outer section of said cathode has an average pore diameter within the range of from 40 to 150 microns.
Claim 3
Dependent Claim
40 words
A process according to claim 3 wherein: the permeability of said core section is within the range of from 0.001 to 4 darcys; and the permeability of said outer section is within the range of from 5 to 75 darcys.
Claim 4
Dependent Claim
20 words
A process according to claim 4 wherein said core section comprises porous carbon and said outer section comprises porous carbon.
Claim 5
Dependent Claim
160 words
A process for the electrochemical conversion of an organic compound feedstock, which process comprises: passing an electric current through a current-conducting electrolyte composition contained in an electrolysis cell provided with a cathode and a porous anode which porous anode is not wetted by said electrolyte, said anode having a core section, at least the lower portion of which has relatively small size pores, and an outer section, in contact throughout most of its surface with said electrolyte, which outer section has relatively large size pores: passing said feedstock into said small pore size core through a first surface thereof at a point adjacent the bottom of said core and thereafter into the larger pores of said outer section and therein at least partially reacting at least a portion of said feedstock; and recovering product and any remaining unreacted feedstock from within the pores of said anode from a second surface, said second surface being spaced apart from said first surface.
Claim 6
Dependent Claim
48 words
A process according to claim 6 wherein: said core section of said anode has an average pore diameter within the range of from 0.01 to 35 microns; and said outer section of said anode has an average pore diameter within the range of from 40 to 150 microns.
Claim 7
Dependent Claim
40 words
A process according to claim 7 wherein: the permeability of said core section is within the range of from 0.001 to 4 darcys; and the permeability of said outer section is within the range of from 5 to 75 darcys.
Claim 8
Dependent Claim
42 words
A process according to claim 8 wherein: said core section comprises porous carbon; said outer section comprises porous carbon; said electrolyte composition comprises essentially anhydrous liquid hydrogen fluoride; and wherein at least a portion of said feedstock is at least partially fluorinated.
Claim 9
Dependent Claim
25 words
A process according to claim 9 wherein said feedstock is initially passed into a feed distribution passageway within the lower portion of saiD core section.
Claim 10
Dependent Claim
22 words
A process according to claim 9 wherein said anode is immersed in said electrolyte to a depth of greater than 6 inches.
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |