Fluidized bed electrode system
AssigneeNoranda Mines Limited
InventorsNanabhai R. Bharucha, Pierre L. Claessens
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Abstract
A fluidized bed electrode system comprises an electrode chamber having a porous base, a main electrode consisting of a bed of fine solid particles contained in such chamber and selected from the group consisting of metals, metal coated glass beads and metal coated plastic beads, a current feeder extending into the bed, means for leading air or inert gas through the porous base at a predetermined velocity and pressure to fluidize the bed, and means for introducing a solution to be treated into the electrode chamber at a point above the porous base and for circulating such solution through the bed at a predetermined flow rate.
Claims11
A fluidized-bed electrode-system comprising:
- a. an electrode chamber having a porous base;
- b. a main electrode consisting of a bed of fine solid particles contained in said chamber, said solid particles being selected from the group consisting of metals, metal coated glass beads, and metal coated plastic beads;
- c. an auxiliary electrode located in said chamber and electrically insulated from said main electrode;
- d. a current feeder extending into said bed;
- e. means for leading air or inert gas through said porous base at a predetermined velocity and pressure to fluidize said bed;
- and
- f. means for introducing a solution to be treated through said fluidized bed at a point above said porous base and for circulating said solution at a predetermined flow rate.
A method for recovering a metal from a solution containing such metal using a fluidized-bed electrode system comprising an electrode chamber having a porous base, a main electrode located in such chamber and consisting of a bed of fine solid particles at least coated with metals, an auxiliary electrode insulated from said main electrode, and a current feeder extending into said bed, said method comprising the steps of:
- a. fluidizing said bed solely by leading air or inert gas through the porous base at a predetermined velocity and pressure to obtain a desired degree of fluidization;
- and
- b. introducing said solution into the electrode chamber at a point above the porous base and circulating the solution through the fluidized-bed at a predetermined flow rate.
Dependencies are inferred from the claim text.