研究了含砷难浸浮选金精矿的预处理。
The pretreatment of arsenical refractory floatation gold concentrate was studied.
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％。
The average leaching recovery of gold reaches 86.01% from high grade raw ore and flotation concentrate of gold in pilot test.
对浮选金精矿采用细菌预氧化—氰化浸出工艺，金浸出率可达到92.73%。
However, when the technology of bacterial pre-oxidation and cyanide leaching for flotation concentrate of gold is used, the leaching rate of 92.73% is reached.
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