CDU 0.00% 23.5¢ cudeco limited

Hi Chalco, Yes the Ernest Henry results were very good. The ores...

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    Hi Chalco,

    Yes the Ernest Henry results were very good. The ores seem to have very good properties for high recoveries. See releases 24 Nov 2014 & 2 Dec 2014. Copper in concentrates well over 30% and recoveries exceeding 90%. Given this was a small trial there are some optimisation gains to be had. Also look at release from 3 June 2011 Bulk Testing Trial where recoveries were:

    Native copper +1mm 98%
    - 1mm 94.1%

    Primary ore Cu 94.3%
    Co 90.3%

    Chalcocite ore Cu 85%
    Co 75.9%

    The bulk trial above was conducted at NAGROM in Perth. Further gains can be reasonably expected once the ore is better understood. If you offset the lower chalcocite recoveries with the native copper gains you can see that 95% (or very near to it is doable).

    Regards, Timboz
 
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