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首页> 外文会议>Eighth International Conference on Tailings and Mine Waste '01, Jan 16-19, 2001, Fort Collins, Colorado, USA >Comparison of kinetic tests for sulfide mine tailings
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Comparison of kinetic tests for sulfide mine tailings

机译：硫化矿尾矿动力学测试的比较

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摘要

Eight different sulfide mine tailings were tested by two types of kinetic prediction tests, the humidity cell (30 to 60 cycles duration) and the column test (11 to 12 cycles duration), for determination of mineral dissolution rates. These tailings had a wide variety of acid generating potentials. The leachates produced by the tailings "Lou", "Lar" and "Cla" were near neutral pH at the start of the test, and became acid after few months, while the five tailings "Jou" stayed at a near neutral pH for the duration of the test. The differences in geochemical behavior are discussed for the two types of tests and for the different samples. Oxidation-neutralization rate of minerals was determined for each of the two types of kinetic tests. The results demonstrate that there is little significant difference between the rates as determined by the water qualities obtained from both the column tests and the humidity cells tests for these cases. This is contrary to results from several previous studies.
机译：通过两种类型的动力学预测测试（湿度单元（持续时间为30至60个循环）和柱测试（持续时间为11至12个循环））测试了八种不同的硫化物尾矿，以测定矿物的溶出率。这些尾矿具有广泛的产酸潜力。尾矿“ Lou”，“ Lar”和“ Cla”产生的渗滤液在测试开始时接近中性pH，几个月后变为酸，而五个尾矿“ Jou”在测试开始时均保持中性pH。测试的持续时间。讨论了两种类型的测试以及不同样品的地球化学行为差异。对于两种动力学测试中的每一种，都确定了矿物质的氧化中和速率。结果表明，在这些情况下，由柱测试和湿气测试获得的水质所决定的速率之间几乎没有显着差异。这与先前的一些研究结果相反。

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