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一、前言宁乡式和茶陵式铁矿属浅海相胶体沉积矿床,较广泛地分布于湖南、湖北、贵州、广西、云南等省(区),江西、四川、河北、甘肃也有产地,这是南方储量较大的沉积铁矿类型,也是我国重要的铁矿资源之一。根据矿床成因,宁乡式铁矿相当于国外的明尼特型,对这种矿石的处理,国内外都较为重视。目前,国外主要利用以含钙质为主的矿石,对含硅质矿石的选矿问题尚未解决,所以硅质矿石一般不开采或采后与钙质矿配用。法国对洛林地区的鲕状褐铁矿的处理,过去是采用烧结,现在用干式强磁选方法,目前正着重进行沸腾磁化焙烧方法的研究。苏联对乌克兰的利
I. Preface The Ningxiang-type and Chaling-type iron mines belong to the shallow sea facies colloidal deposit. They are widely distributed in provinces such as Hunan, Hubei, Guizhou, Guangxi and Yunnan, as well as Jiangxi, Sichuan, Hebei and Gansu It is a type of sedimentary iron deposit with large reserves in the south and is also one of the important iron ore resources in China. According to the genesis of the deposit, Ningxiang-type iron ore is equivalent to the Minneapolis-type of foreign countries. The treatment of this ore has been paid more attention both at home and abroad. At present, the main foreign use of calcium-based ore, the ore-dressing of siliceous minerals has not yet been resolved, so generally not mining or mining of silica ore with calcareous ore. France oolitic limonite processing Lorraine area, the past is the use of sintering, now using dry magnetic separation method, is currently focusing on boiling magnetization roasting method. Soviet Union’s benefit to Ukraine