宜昌某磷矿配矿浮选试验研究  

Flotation test on blended collophanite in Yichang

作　　者：谢金玲[1] 耿悦[1] 李欢[1] 黄齐茂[1,2,3] 

机构地区：[1]武汉工程大学化学与环境工程学院,湖北武汉430073 [2]武汉朗英矿山化学品有限公司,湖北武汉430223 [3]国家磷资源开发利用工程技术研究中心,湖北武汉430073

出　　处：《化工矿物与加工》2016年第5期8-11,共4页Industrial Minerals & Processing

基　　金：湖北省科技支撑计划项目(2015BCA255)资助

摘　　要：宜昌某磷矿原矿P_2O_5品位为20.09%,MgO质量分数高达11.98%,嵌布粒度细,脉石矿物难以脱除。针对该矿石镁难以脱除的特点,将其与另外一种低镁宜昌磷矿(原矿P_2O_5品位27.65%,MgO质量分数为1.46%)按质量比1∶2的比例进行配矿,然后进行常温反浮选试验,以实验室自制药剂FZ为反浮选药剂,取得了混合精矿P_2O_5品位33.63%,MgO品位0.68%,回收率94.26%的闭路试验指标,实现了目标矿物与白云石等杂质矿物的有效分离。A phosphate ore in Yichang has the grade of P2O5 being 20.09% with the content of MgO with fine disseminated grain size and difficult to remove up to 11.98%.In response of the feature of difficulty in magnesium removal,it was blended with another low-and-middle grade and low magnesium phosphate ore（crude ore’s grade being 27.65% with MgO content 1.46%）at a mass ratio of 1∶2before being subjected in reverse flotation test at ambient temperature using the laboratory reagent FZ.The results showed that the closed-circuit test indexes of P2O5 33.83%,grade of MgO 0.68% and recovery 94.26% for bulk phosphate concentrate were obtained and target minerals,dolomite and other impurities were effectively separated.

关 键 词：胶磷矿 反浮选 配矿 捕收剂 

分 类 号：TD971[矿业工程—选矿]