| 摘要 |
<p>Value metal, for example, silver in a spent silver bearing photographic solution is efficiently recovered in an exchange mass comprising a particulate inert substrate, for example, cellulosic fibers or sponge particle s, co-mingled and interlocking with elongate particles of replacement metal, for example strands of steel wool; the substrate defines a non-channeling random flow paths for liquid flow, and inhibits carriage of recovered value metal by th e flowing liquid.</p> |
