由于黄铁矿硫不会完全被氧化，NAG比NAPP可更为准确地预测尾矿的产酸潜力。
NAG was more accurate than NAPP in predicting acid forming potential of the tailings due to the uncompleted oxidization of pyritic sulfur.
试验结果表明煤中硫酸盐硫和黄铁矿硫都可获得理想的脱除效果，全硫脱除率最高可达54.8%。
The results of the experiments indicated that the sulfate and pyretic sulfur can be removed efficiently and the highest removal rate of total sulfur is54.8%in acidic medium.
结果表明，电化学调浆不破坏煤的结构，经过电化学调浆浮选，能有效的脱除煤中硫、尤其是黄铁矿硫。
The result show that the pyrite in coal is the oxidized FeSn, and can be suppressed by electro reduction.
应用推荐