铬的回收获取铬铁矿原矿,采用地面和地下两种开采方法。多数扁豆形或透镜形矿床用地面开采,而层状矿床,例如南非和津巴布韦的矿床通常用地下开采方法。特定开采工艺很大程度取决于矿床所在位置。铬铁矿一般用手选、洗涤和筛分或用重选法进行选别。细粒的或破碎后的低品位矿石,采用跳汰机、摇床、螺旋选矿机或磁选 Chromium recovery for chromite ore, using two kinds of ground and underground mining methods. Most lentil or lenticular deposits are mined on the ground, whereas stratiform deposits, such as those in South Africa and Zimbabwe, are commonly mined underground. The specific mining process depends very much on the location of the deposit. Chromite generally hand-selected, washing and screening or re-election method for sorting. Fine or broken low-grade ore, using jig, shaker, spiral concentrator or magnetic separation