论文部分内容阅读
二、鲕状赤铁矿石的选矿研究与实践宣龙式和宁乡式浅海沉积铁矿床所产矿石因其含铁矿物常呈鲕状、豆状、肾状构造,通常称为鲕状铁矿石。鲕状铁矿石在我国铁矿石储量中所占比例虽不大,但在某些省份有比较集中的分布,研究和利用这类矿石对增加我国钢铁产量和合理工业布局有一定的意义。这类铁矿石的矿物组成较复杂,结构较特殊(见表5)。铁矿物以赤铁矿为主,菱铁矿次之,亦有部分褐铁矿;脉石矿物以石英、绿泥石为主,还有
Second, the oolitic hematite ore beneficiation research and practice Xuan-Long and Ningxiang-type shallow sea sedimentary iron ore ore because of its iron ore often oolitic, bean-shaped, kidney structure, commonly known as oolong Iron ore Although the proportion of oolitic iron ore in China’s iron ore reserves is not large, it is concentrated in some provinces, and research and utilization of such ore have certain significance to increase the output of steel and reasonable industrial layout in our country. The mineral composition of such iron ore is more complicated and the structure is rather special (see Table 5). Iron ore mainly hematite, siderite next, there are also some limonite; gangue minerals to quartz, chlorite, and