一、高梯度磁选的主要对象——细泥问题细泥的分选问题已经受到各国有关部门的普遍重视。在矿业方面,随着富矿资源的日渐耗尽,对贫细矿石的选别以及从现有尾矿中再回收细级别有用矿物,都已成为迫切需要解决的问题;在化工方面,许多沉淀反应是否可行,取决于沉淀生成物的凝聚时间,往往由于 First, the main object of high-gradient magnetic separation - Fine mud problem Fine mud sorting problem has been widespread attention of relevant departments of various countries. As for the mining industry, with the depletion of rich ore resources, the selection of fine and light ore and the recovery of fine grade useful minerals from existing tailings have become urgent problems to be solved. In chemical industry, many precipitation reactions Whether it is feasible or not depends on the coagulation time of the precipitated product, often due to it