| 摘要 |
<p>A process for recovery of a valuable species in an ore that contains constituents of absorbed microwave energy is disclosed. In particular, a process for recovery of gold values from a gold bearing ore is disclosed. The process comprises: (a) crushing the gold bearing ore so that up to 95 % of the ore passes a 2 mm screen; (b) exposing the crushed ore to pulses of microwave energy of 1 to 30 seconds duration with intervals of 10 seconds to 2 minutes between the pulses for a total treatment period of up to 1 hour to condition the crushed ore; (c) wet grinding the conditioned crushed ore to a size of -76 νm; and (d) leaching the gold values from the crushed, conditioned, ground ore.</p> |
