Test results showed that use of ammoniacal solution pretreatment can effectively remove copper, and thus alleviating negative effect of copper on leaching of gold.
结果表明：采用含氨溶液预处理除铜，有效地排除了铜对氰化浸金的影响。
The average leaching recovery of gold reaches 86.01% from high grade raw ore and flotation concentrate of gold in pilot test.
半工业试验对浮选金精矿和高品位原矿平均金浸出率达86．01％。
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