本文通过对密度熔解、微波处理两种化学选煤方法的介绍,阐述了化学选煤的过程、机理和优缺点。另外,从列举的实验结果可以看出,采用此种方法处理煤炭,能够获得低疏、低灰、高热值的优质产品。但就目前来看,此项技术尚未发展到成熟阶段,尚需继续努力。 This article describes the process, mechanism, advantages and disadvantages of chemical coal preparation by introduction of two kinds of chemical coal preparation methods, ie density melting and microwave treatment. In addition, from the experimental results listed can be seen, using this method to deal with coal, can get low sparse, low ash, high calorific value of quality products. But for now, this technology has not yet reached a mature stage, still need to continue its efforts.