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Hey guys,
been having issues with our elution circuit, we have been having high barren carbon results (150 a 400ppm) from loaded carbons anywhere between 900 - 1300ppm, have exhausted all potential ideas
caustic, cyanide, ph, flow rate, temperature, timings, volts and amps of the cells, and pressure all operating under normal conditions
We have changed multiple valves that were slightly passing as well as a semi blocked heat exchanger, all anodes and cathodes as they were becoming badly worn.
Our regeneration kiln hasn’t run reliably for 6 months, no solution loss from cil circuit though, could the gold possibly become trapped in the carbon?