Electro-osmotic/phoretic process for concentrating clay

Details Electro-osmotic/phoretic process for concentrating clay Electro-osmotic/phoretic process for concentrating clay

1976-06-16

1978-08-29

Prescott, Arthur C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204300R, B01D 1302

Patent

active

041101898

ABSTRACT:
A process for the electrokinetic separation of finely divided clay particles from an aqueous suspension thereof, the suspension being contained in an electrokinetic cell equipped with an anode and cathode separated by a semi-permeable membrane impermeable to clay particles. Upon activation of the cell with direct current, clay particles are caused to deposit electrophoretically on the anode. Simultaneously with the deposition of the clay deposit, portions of the water contained in the suspension and entrained in the deposit are caused to migrate electroosmotically through the membrane and collected at a cathode compartment, thereby increasing clay solids content.

REFERENCES:
patent: 1366456 (1921-01-01), Highfield
patent: 1435886 (1922-11-01), Acton et al.
patent: 1719984 (1929-07-01), Klein et al.
patent: 2500878 (1950-03-01), Sieling
patent: 3642605 (1972-02-01), Chenel et al.

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