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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Cyanidation of reef and surface gold ores
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Cyanidation of reef and surface gold ores

机译：礁石和表层金矿石的氰化

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摘要

The kinetic leaching behaviour of a low-grade surface gold ore and a high-grade reef ore were evaluated to determine the achievable gold recovery from these ores and particularly mixtures of these ores. The reef ore material has a head grade of 13.40 g/t with a relative standard deviation of 3%, and the unprocessed surface ore material a head grade of 0.43 g/t with a relative standard deviation of 15.6%. It is concluded that the kinetic leaching behaviour of these free milling gold ores during cyanidation, is not influenced by mixing of reef and surface ore material. No statistically significant relationship exists between the achievable recovery by direct cyanidation and the head grade of the material fed. No ideal ratio of surface ore to reef ore could be established. It is recommended that these materials should be processed simultaneously to minimize the costs, security risks, and losses incurred in transportation.
机译：评价了低品位表层金矿石和高品位礁石矿石的动力学浸出行为，以确定从这些矿石，特别是这些矿石的混合物中可实现的金回收率。礁矿材料的品位等级为13.40 g / t，相对标准偏差为3％;未加工的表面矿石材料的品位等级为0.43 g / t，相对标准偏差为15.6％。结论是，这些自由研磨的金矿石在氰化过程中的动力学浸出行为不受礁石和表层矿石材料混合的影响。通过直接氰化可实现的回收率与进料原料的等级之间没有统计学上的显着关系。无法确定表层矿石与礁石矿石的理想比例。建议将这些材料同时处理，以最大程度地降低成本，安全风险和运输中的损失。

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