Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1987-08-05
1988-08-09
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204 98, 204128, 204111, 204113, 204273, C25C 100
Patent
active
047625970
ABSTRACT:
An electrochemical process for oxidizing an ore, such as a refractory ore, utilizes a centrifugal reactor having a central rotor cathode, the circumference of which is enclosed by an anode housing defining an active anode surface. The crushed ore is pulped in an aqueous chloride containing electrolyte and applied to the active anode surface. The reactor is spun in the presence of sufficient electrolyte to establish an electric circuit between the cathode and the anode, and so that a fluid pressure of from about 10 psi to about 100 psi is obtained at the active anode surface. A current density is provided at the active anode surface of from about 0.1 amp/sq.in. to about 1.0 amp/sq.in. so that chlorine is generated at the anode and the crushed ore particles are oxidized to release metal values of interest.
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