目前,对细微矿物的分离还没有一种行之有效的方法,加之研究工作要求避免使用化学试剂,使矿物提纯工作更为困难.以往的常规分选方法对于粒度人于0.043毫米的矿物,容易获得纯度高的单矿物,而对粒度小于0.043毫米的矿物则十分困难,尤其是矿石结构复杂,性脆易碎的细粒金属硫化矿物的分离就更难.据文献介绍,有人曾研究了用土豆淀粉作为凝聚剂,分离选煤废水中的悬浮固态物质.我们试用玉米粉进行了试验,查明玉米粉与矿样重量配比适当时,它不但可作为悬浮固态物质的凝聚剂,而且亦可作为一种分散剂,使矿物颗粒易于 At present, there is no proven method for the separation of fine minerals, combined with the need to avoid the use of chemical reagents in research work, which makes it more difficult to purify minerals.The conventional sorting methods are easy for minerals with a size of 0.043 mm It is very difficult to obtain pure minerals with a purity of less than 0.043 mm, especially for the complex and fragile fragile fine-grained metal sulphide minerals. According to the literature, it has been studied using Potato starch as flocculant, the separation of suspended solids in the coal preparation waste water.We experimented with corn flour to try to find out that when the weight ratio of corn flour and mineral sample is appropriate, it can not only act as flocculating agent for suspended solid matter, but also Can be used as a dispersant to make mineral particles easy