Silver recovery cell

Details Silver recovery cell Silver recovery cell

1994-04-11

1995-03-28

Rosenberg, Peter D.

Metallurgical apparatus

With recording, indicating, inspection or measuring means

Having observation means

C22B 1100

Patent

active

054010055

ABSTRACT:
An improved cell for removal of silver ions from a liquid such as used photographic fixer includes a container having enclosed side and bottom walls. Fluid flow inlets and outlets for the flow of a liquid into and out of said cell are provided at opposite ends of the container. A layer of iron-containing material is positioned between the inlet and the outlet, and a layer of pellets, preferably spherical, having a density greater than water, is positioned above the layer of iron-containing material so that the iron-containing material is continuously compressed by the weight of the pellets, thereby avoiding formation of voids in the material as it is consumed.

REFERENCES:
patent: 2643108 (1953-06-01), Lieberman
patent: 3744995 (1973-07-01), Mackay
patent: 4331473 (1982-05-01), King
patent: 5173247 (1992-12-01), Woog

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