茶陵式鲕状赤铁矿是湖南省的重要铁矿资源之一。研究这种矿石的物质成分及其相互关系,对选择合理的选矿手段及其工艺流程,是十分重要的。近年来,一些单位对茶陵式铁矿进行了多种选矿流程试验。采用通常的重、磁、浮选方法,铁精矿只能达到赤铁矿鲕体的品位,采用直接还原焙烧—磁选法也难获得炼钢所需的合格精料,必须打破赤铁矿鲕体,使有用矿物充分解离,才能获得较好的结果。大多认为鲕状赤铁矿是浅海相胶体沉积的。茶陵式鲕状赤铁矿沉积成矿后,又经历了不同程度的变质作用和表生风化作用,使矿石的结构构造、物质组成更趋复杂。根据七个矿区选矿物料的研究,茶陵式铁矿的矿物组成有:赤铁矿(包括水赤铁矿)、磁铁矿、褐铁矿、菱铁矿、磁黄铁 Chaling oolitic hematite is one of the important iron ore resources in Hunan Province. Studying the physical composition of such ores and their interrelationships is very important for choosing a reasonable beneficiation method and its technological process. In recent years, some units conducted a variety of beneficiation process tests on Chaling Iron Ore. The usual heavy, magnetic, flotation methods, iron ore concentrate can only reach the grade of hematite oolites, the use of direct reduction roasting - magnetic separation method is also difficult to obtain qualified steel concentrate required to break the hematite Oviposome, so that useful minerals fully dissociation, in order to get better results. Mostly considered oolitic hematite is shallow marine gel deposition. After Chaling-type oolitic hematite deposit and mineralization, it experienced different degrees of metamorphism and epigenetic weathering, making the ore structure and composition more complicated. According to the study of beneficiation materials in seven mining areas, the mineral composition of Chaling-type iron ore is: hematite (including hematite), magnetite, limonite, siderite,