Silver recovery cell
OwnerGunter Wooginventor
Life of this patent
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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.
Claims10
An improved cell for removal of silver ions from a liquid comprising a container having enclosed side and bottom walls,
- a fluid flow inlet for the flow of a liquid into said cell,
- an outflow outlet for outflow of said liquid with inflow and outflow outlets positioned at opposite ends of said container,
- a layer of iron-containing material positioned between said inlet and said outlet, and,
- a layer of pellets positioned above said layer of iron-containing material said pellets having a density greater than water and being of a size such that a multiplicity thereof forms a layer within said container, whereby said iron-containing material is continuously compressed by the weight of said pellets.
Dependencies are inferred from the claim text.