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云南省海口磷矿是我国西南地区的大型磷矿基地之一,矿区交通方便,地质构造简单,整个矿体四周出露,赋存于海拔2100～2480米标高,全矿区矿石均宜露天开采。 全矿区按地质构造特征被划分为Ⅰ、Ⅱ、Ⅲ、Ⅳ四个采区。其中除Ⅰ、Ⅱ采区矿石因后期风化作用使碳酸盐矿物流失,P_2O_5品位相应提高外,矿石的其它特性四个采区均相同。就矿石品位和杂质含量来看,宜于优先开发利用Ⅰ、Ⅱ采区矿石,为此我院重点对Ⅰ、Ⅱ采区的矿石进行了选矿研究。
The Haikou phosphate rock in Yunnan Province is one of the large-scale phosphate rock bases in the southwest of China. The mining area is easily accessible and has simple geological structure. The entire ore body is exposed all around the ore body and resides at elevation of 2100 to 2480 meters. The ore in the entire ore area should be open-pit. The whole mining area is divided into four mining areas Ⅰ, Ⅱ, Ⅲ and Ⅳ according to geological structure. In addition to Ⅰ, Ⅱ ore mining area because of the late weathering carbonate minerals loss, P_2O_5 grade corresponding increase, the other characteristics of the ore four mining areas are the same. In terms of ore grade and impurity content, it is appropriate to give priority to the exploitation and utilization of ores in ores of Ⅰ and Ⅱ mining areas. Therefore, the ore concentrate of ores in Ⅰ and Ⅱ mining areas of our institute should be beneficially studied.