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To: Boolish who wrote (138641)	3/15/2014 9:12:16 PM
From: ayeyou	Respond to of 233835

I am not saying to stay away either. The concept is sound and if they have come up with a method of fine tuning the leaching of gold using a halide based leachant that works on a large scale it will be a winner without doubt. Cyanide in my opinion is on its way out and new methods must be found to extract gold from ore. There is however a big difference from a 100 ton sample run through modular plant in a warehouse setting to building 2 or 3 thousand ton per day processing plants. I have been doing testing over the past two years with both chlorine based and thiosulphate leachants after discovering that getting permitted for a cyanide gold plant was akin to getting a permit to take a truck load of explosives over the border. It is quite amazing how the smallest deviance from the norm can result in horrible failure. Time , dilution of leachant , temperature , PH , oxygen content , and presence of certain sulfides can all wreak havoc on best laid plans. I will say this , if a company has solved the riddle and can prove it up on a production level basis it would be like hitting the Eldorado. There is a huge need for development of this type of safe extraction technology and I have myself been approached by more then one company that is interested in JVing with me on developing a sound thiosulphate leaching process. After much experimentation that is the route I have focused on as the tailings can literally be used for fertilizing crops.The key ingredient I use in my thiosulphate work is bought as a liquid fertilizer from the local agri co-op Chlorine or halide based systems can also be made benign with simple PH treatment of the tailings.