一、前言锡铁矿是一种含锡的铁矿。就其矿物类型来说,基本上属于磁铁矿类型铁矿,其中伴生有一定数量的锡、锌、铜等有价金属,实质上是一种复合矿。锡铁矿是我国的一类重要的矿产资源,分布比较广泛,储量十分丰富。广东、内蒙、云南、四川等十多个省、区都发现有较大的矿床。全国已探明的锡铁矿总储量中,铁储 I. Introduction Tin iron ore is a tin-bearing iron ore. In terms of its mineral type, it basically belongs to magnetite type iron ore, in which a certain amount of valuable metals such as tin, zinc and copper are associated with it and is essentially a composite ore. Tin-iron ore is a kind of important mineral resources in our country, with a wide distribution and abundant reserves. Guangdong, Inner Mongolia, Yunnan, Sichuan, more than 10 provinces and autonomous regions have found a larger deposit. The country has proven total tin reserves, iron storage