| 摘要 |
<p>PRECIOUS METAL RECOVERY CARTRIDGE AND METHOD A cartridge housing (12) having a liquid inlet (14) at one end and an outlet (16) at the opposite end carries in an intermediate volume a spiral rolled exchange mass (18) of flexible, resilient, fibrous material forming a matrix that is self-sup-porting and non-reactive with the type of solutions with which the cartridge is intended to be used. Within the exchange mass is carried a dispersed array of finely divided particles of replacement metal (19), adhesively attached to the fibers. At each end of the cartridge adjacent to the inlet and outlet is a cavity (20) communicating with a spiral end (38) of the exchange mass, and the inlet cavity (20) houses an inlet nipple (26) that has a discharge opening (30) facing generally away from the spiral end face (38) of the mass. As flow through the mass produces precipitated precious metal, the mass is able to flex and thereby avoid clogging. Fiberglass is the preferred material for the exchange matrix. For some solutions a filter mass (21) is mounted in the same cartridge housing downstream of the exchange mass (18) to filter out selected products in solution.</p> |
