juk, if you can google up this PDF reference,it gives numerous...

juk,

if you can google up this PDF reference,it gives numerous process improvements upto 2008.I found it very informative and enlightening.yes,you are right most of the information i garner is from trade publications.However,the trip from where they were to where they are now is very enlightening and it sounds like WILUNA's current operations were so similar to their starting point.
They are also open in giving full ore composition and process details.I look forward to you ripping it apart and telling me why wiluna ore is so different.

reading this made me realise,maybe the problem,is people make the process too complicated and KISS should be applied.

gs 2008 _Bio-treatment of Refractory Gold Ore in Obuasi Min[197121]

DYOR+DYODD