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most gold ore processing relies on cyanide leaching to extract gold from the ore. the gold bearing cyanide solution is then concentrated and the gold is recovered and further purified, if gold ore contains mercury, air emissions from ore processing may occur under certain physical and chemical conditions.
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davao city, philippines—the environment group basel action network (ban) toxics has opened a gold processing facility it hopes will show small scale miners an alternative to the use of highly toxic mercury in processing gold ore extracted from gold rush area of
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the plant is due to be completed in 2013 and once on stream, nac will be able to process the low grade nickel ore it has been stockpiling and improve its sales volume substantially. although its core business is lateritic nickel ore, mr. brimo says nac intends to diversify into gold and copper, two minerals found in abundance in the philippines.
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