不同挥发分煤的浮选理论与实践

Floatation Theory and Practice of Different Volatile Coal

依据分子结构理论，从煤表面的有机分子组成和疏水性间的关系分析了煤的理论可浮性。通过利用不同煤阶煤的基本分子结构单元的量子化学计算结果及煤的电泳实测数据说明了煤表面的负电性。并根据不同极性基团的表面活性剂与煤表面作用的Ｚｅｔａ电位和红外光谱数据讨论了它们的吸附性质。最后讨论了依据上述理论研制的煤浮选促进剂在煤浮选时的作用机理。

Abstract According to the element structure theory, a theoretical floatation of coal was analyzed base on the organic element makeup of coal surface and the relationship between water flow. With a quantum chemical calculation result of an application of basic element structure unit and the electrophoresis measured date of coal, negative electricity property of coal surface was stated. An adsorption features of coal was discussed according to the Zeta electric level and the infrared spectrum data of the surface active agent and coal surface function with different polarity basic conglomeration of coal. In the end of the paper, the floatation mechanism in the coal floatation of the coal floatation accelerate was discussed.