鄂西某高磷鲕状赤铁矿提铁降磷选矿试验研究  

Beneficiation Test on Iron Increase and Phosphorous Reduction of a High-phosphorus Oolitic Hematite in Western Hubei

作　　者：杨大伟[1,2] 孙体昌[1,2] 徐承焱[1,2] 祁超英[3] 李志祥[3] 

机构地区：[1]北京科技大学 [2]金属矿山高效开采与安全教育部重点实验室 [3]武汉钢铁集团矿业有限责任公司

出　　处：《金属矿山》2009年第10期81-83,107,共4页Metal Mine

基　　金："十一五"国家科技支撑计划项目(编号:2007BAB15B01)

摘　　要：为开发利用鄂西某宁乡式高磷鲕状赤铁矿,对其进行了反浮选、强磁选、强磁选—反浮选、还原焙烧—弱磁选等多方案的提铁降磷选矿试验研究。试验结果表明,采用常规选矿方法很难对该矿石进行有效选别,而采用添加脱磷剂的还原焙烧—两段磨矿、两段弱磁选工艺,可或得较好的提铁降磷效果,铁精矿铁品位为92.34%,磷品位为0.025%,铁回收率为90.31%。To exploit and utilize the Ningxiang type high phosphorus oolitic hematite ore in western Hubei, a beneficiation test on iron increase and phosphorous reduction by many processes of inverse flotation, high intensity magnetic separation （HIMS） ,HIMS-inverse flotation and reduction roast-LIMS was carried out. The test shows that it is hard to effectively separate the ores with the conventional method. A good performance with an iron concentrate grading 92. 34% at an 90.31% iron recovery bearing P less than 0.025% could be obtained by reduction roast-two stage grinding and low intensity magnetic separation with addition of dephosphorizer agent.

关 键 词：高磷鲕状赤铁矿 提铁降磷 还原焙烧-弱磁选 脱磷剂 

分 类 号：TD952[矿业工程—选矿] TQ624[化学工程—精细化工]