选矿药剂发展是与选矿过程的发展相适应的。近年来,世界上许多选厂处理的矿石愈来愈贫,综合利用程度愈来愈高,选厂规模愈来愈大,自动化程度愈来愈高。同时,粗粒嵌布的易选矿石资源正在逐年消失,细粒嵌布的某些难选矿石的处理巳提到议事日程。目前,一般的选矿方法已远不能满足不断发展的工艺上的要求,以致机械选矿的很多基本概念和常规流程正在不断突破;各种选矿方法的联合使用,机械选矿和湿法、火法的矿物加工 Dressing agent development is compatible with the development of beneficiation process. In recent years, many ore processing plants in the world have been getting poorer and poorer. The degree of comprehensive utilization is getting higher and higher. The scale of the plant is getting larger and larger and the degree of automation is getting higher and higher. At the same time, the coarse-grained alternative ore resources are disappearing year by year. The treatment of some refractory ores of fine-grained distribution has been put on the agenda. At present, the general beneficiation methods are far from meeting the requirements of the ever-evolving process, so many basic concepts and routine processes of mechanical beneficiation are continually breaking through; the combined use of various beneficiation methods, mechanical beneficiation and wet process, pyrometallurgical mineral Processing