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研究了5种不同成因黄铁矿的物性特征及其浮游性.结果表明:不同成因的黄铁矿颗粒内部结构不同,相同磨矿条件下其破裂方式有异,破裂后矿物表面形貌及表面原子分布密度也不同,因而用黄药作捕收剂时,不同成因的黄铁矿浮游性亦存在差别;黄铁矿的半导体类型与其浮游性间有一定联系,即除煤系沉积型黄铁矿外,p型黄铁矿的浮游性比n型黄铁矿的好.从矿物学的角度看,由形成条件决定的黄铁矿内部结构、半导体类型,以及破碎后矿物表面铁原子的分布密度是影响其浮游性的主要因素.
The physical properties and the floating characteristics of five different pyrite types were studied.The results show that the internal structure of the pyrite with different genesis is different and the fracture modes are the same under the same grinding conditions and the mineral surface morphology and surface The distribution density of atoms is also different. Therefore, when the yellow drug is used as the collector, the pyrite floatability of different genesis is also different. There is a certain relationship between the semiconductor type of pyrite and its floatability, that is, Pyrite has better flotation than n-type pyrite, from the point of view of mineralogy, the internal structure of pyrite, the type of semiconductor, and the distribution of iron atoms on the mineral surface after crushing Density is the main factor that affects its floatability.