US3980547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrokinetic cell
Assignee: JM Huber Corp
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Filing: 1974-12-13
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Granted: 1976-09-14
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Expires: 1994-12-13
Abstract
Abstract An electrokinetic cell for the separation of solid particles from an aqueous suspension thereof, the cell being equipped with an anode and cathode separated by a semi-permeable membrane impermeable to clay particles which divides the cell into anode and cathode compartments. Upon application of direct current to the anode and cathode, clay particles in a suspension fed to the anode compartment deposit electrophoretically on the anode. Water contained in the suspension and entrained in the deposit simultaneously migrates electrosomotically therefrom and through the membrane where it is collected in the cathode compartment and thereafter removed from the cell.
Inventors
- 👤 Albert C. Kunkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:58
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/56; B01D43/00; B01D57/00; B01D57/02; B03; B03C; B03C5/00; C; C09; C09C; C09C1/00; C09C1/40; C09C1/42; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
109 words
An electrokinetic cell for separating solids from aqueous suspensions thereof comprising: an anode, a cathode, a semi-permeable membrane impermeable to solid particles arranged between the anode and cathode, the space between the anode and the membrane providing an anodic chamber and the space between the cathode and the membrane providing a cathodic chamber, inlet means to feed an aqueous suspensions of solid particles to the anodic chamber, outlet means to discharge solid particle depleted effluent from the anodic chamber, means, independent of said outlet means, to supply and discharge electrolyte to and from the cathodic chamber, and means for applying a direct current field between the anode and cathode.
Claim 2
Dependent Claim
109 words
An electrokinetic cell for separating solids from aqueous suspensions thereof comprising: an anode, a cathode, a semi-permeable membrane impermeable to solid particles arranged between the anode and cathode, the space between the anode and the membrane providing an anodic chamber and the space between the cathode and the membrane providing a cathodic chamber, inlet means to feed an aqueous suspensions of solid particles to the anodic chamber, outlet means to discharge solid particle depleted effluent from the anodic chamber, means, independent of said outlet means, to supply and discharge electrolyte to and from the cathodic chamber, and means for applying a direct current field between the anode and cathode.
Claim 3
Dependent Claim
25 words
The cell of claim 1 wherein the anode is rotatably mounted in the anode chamber and the cathode is fixedly mounted in the cathodic compartment.
Claim 4
Dependent Claim
20 words
The cell of claim 1 wherein the cathode is constructed of a foraminous material pervious to the passage of water.
Claim 5
Dependent Claim
34 words
The cell of claim 1, wherein a source of current to apply current through the cell yeilds a current density of about 0.05 to about 0.35 amperes per square inch of effective electrode area.
Claim 6
Dependent Claim
25 words
The cell of claim 1 wherein the spacing between the anode and membrane is in the order of about 1 to about 1 1/2 inch.
Claim 7
Dependent Claim
20 words
The cell of claim 1 wherein the spacing between the cathode and membrane is about 1/16 to about 1/2 inch.
Claim 8
Dependent Claim
23 words
The cell of claim 1 wherein the membrane is a porous fabric having a porosity of 0.5 to 4.0 cubic feet per minute.
Claim 9
Dependent Claim
18 words
The cell of claim 1 wherein the spacing between the anode and membrane is approximately 1 1/4 inch.
Claim 10
Dependent Claim
17 words
The cell of claim 1 wherein the spacing between the cathode and membrane is approximately 3/16 inch.
References Cited (Backward Citations)
US1229203A
Cited
US1719984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |