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通过浮选尾矿水人工闭路循环试验和在水中人为预加起泡剂浮选试验，考察了水中积聚的有机物对浮选的影响。结果表明，循环水中积聚的有机物主要是醇、酮、羧酸盐等含氧化合物；有机物积聚可提高精煤回收率，改变浮选的选择性
The effects of organic matter accumulated in the water on flotation were investigated by artificial closed loop test of flotation tailings and artificial pre-frothing flotation in water. The results showed that the organic matter accumulated in circulating water was mainly oxygenated compounds such as alcohols, ketones and carboxylates. The accumulation of organic matter could increase the recovery rate of clean coal and change the selectivity of flotation