随着矿物资源日趋细杂贫,粗粒易选矿濒临枯竭,微细粒矿物的选矿显得十分突出。近年来,涉及物理化学的选矿领域发展了若干新方法和新工艺。主要从两方面进行研究,其一是使微细粒集聚,以增大表观粒度,改善选别过程;其二是改变微细粒向气 As the mineral resources become more and more impoverished, the coarse-grained ore dressing is on the verge of depletion, and the beneficiation of fine-grained minerals is very prominent. In recent years, a number of new methods and processes have been developed in the field of physicochemical dressing. Mainly from two aspects of research, one is to gather fine particles to increase the apparent size, to improve the sorting process; the second is to change the micro-particle to the gas