Apparatus for removing particles and chemicals from a fluid solu

Details Apparatus for removing particles and chemicals from a fluid solu Apparatus for removing particles and chemicals from a fluid solu

1974-02-25

1976-08-17

Walton, Donald L.

Chemistry: electrical and wave energy

Apparatus

Coating, forming or etching by sputtering

204130, 204149, 204150, 204180R, C25B 700, C25D 1502

Patent

active

039752577

ABSTRACT:
An apparatus for removing undesirable particles, such as metal and fiberglass, and harmful chemical forms, such as acid etchants, from a fluid solution having container means at least partially formed from a plastic electret material disposed in contacting relationship with the solution and carrying an electrostatic charge which causes the particles in the solution to adhere to the surface of the container formed from the material. The container means include a receiving tank having baffles spaced therealong, a filter assembly having filter cartridges to remove foreign matter from the solution and a holding tank, each of the tanks and the shell of the filter being formed from the plastic electret material. The holding tank includes a metal chip assembly placed in contact with the solution and chemically reactive with etchants in the solution to neutralize them. A method of removing particles and chemical compounds from a fluid solution by: passing the solution over a plastic electret material disposed adjacent the path of flow of the solution such that the solution comes in contact with the surface of the electret material which carries an electrostatic charge and thereby causes the particles to adhere to it; and, holding the solution in the presence of metallic chips to neutralize the chemical compounds.

REFERENCES:
patent: 614617 (1898-11-01), Milligan
patent: 3544458 (1970-12-01), Sato
patent: 3687834 (1972-08-01), Candor

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