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.
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。
Test results showed that use of ammoniacal solution pretreatment can effectively remove copper, and thus alleviating negative effect of copper on leaching of gold.
用中度嗜热菌mp30菌株氧化预处理含砷难浸金精矿回收金。
A strain of moderately thermophilic bacteria, MP30, has been used to oxidize an arsenic-containing refractory gold concentrate for gold recovery.
叙述生物冶金法处理难浸含金硫化矿的优点及所用微生物种类，浸出的机理和方法研究与细菌氧化厂的工业应用。
Biometallurgy, roasting and pressure oxidation are generally used to pretreat the refractory gold containing sulfide ores or concentrates. The advantages of biooxidation were presented in the paper.
堆浸是处理低品位含金矿石的有效方法，目前用堆浸法生产的黄金产量已占世界黄金总产量的30%以上。
Heap leaching is an effective means of the processing of low grade gold mine. The gold output produced by heap leaching accounts for 30% of the total gold output in the world.
试验结果表明，制粒—氰化预处理—堆浸可改善含粘土质矿的渗透性、提高金的浸出率、加强浸出速度、缩短浸出周期、降低成本及改善环境条件。
The results show that this new process can enhance the gold leaching rate from the clay-containing ore, increase the leaching speed, shorten operational cycle, cut production costs and…
试验结果表明，制粒—氰化预处理—堆浸可改善含粘土质矿的渗透性、提高金的浸出率、加强浸出速度、缩短浸出周期、降低成本及改善环境条件。
The results show that this new process can enhance the gold leaching rate from the clay-containing ore, increase the leaching speed, shorten operational cycle, cut production costs and…
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