某磷矿正反浮选工艺研究与实践  

Research and practice of positive and reverse flotation process for a phosphate rock

作　　者：卫波 符敬杰 余承章 王官忠 时承东 WEI Bo;FU Jingjie;YU Chengzhang;WANG Guanzhong;SHI Chengdong(Hubei Dayukou Chemical Co.,Ltd.,Zhongxiang 431910,China)

机构地区：[1]湖北大峪口化工有限责任公司,湖北钟祥431910

出　　处：《磷肥与复肥》2022年第4期28-30,共3页Phosphate & Compound Fertilizer

摘　　要：湖北钟祥某磷矿原矿w(P_(2)O_(5))为17.60%,w(MgO)为7.50%,为低品位硅钙质磷块岩。依据矿源性质和工艺指标要求,采用正反浮选工艺,正浮选为一次粗选、两次精选和一次扫选作业,反浮选为一次粗选、一次扫选作业。结果表明,该磷矿采用正反浮选工艺流程可获得磷精矿w((P_(2)O_(5)))为31.45%、w(MgO)为1.02%,(P_(2)O_(5))回收率为83.52%的工艺指标。The w((P_(2)O_(5))) and w(MgO) of a phosphate rock in Zhongxiang,Hubei province are 17.60% and7.50% respectively,which is low-grade silica-calcareous phosphorus blocks.According to the characteristics of rock source and the requirements of the process index,the positive and reverse flotation process is adopted,the positive flotation adopts one roughing,two cleaning and one scavenging process,and the reverse flotation adopts one roughing and one scavenging process.The results show that phosphorus concentrate with w((P_(2)O_(5))) of31.45%,w(MgO) of 1.02% and (P_(2)O_(5))recovery rate of 83.52% can be obtained by using positive and reverse flotation process.

关 键 词：磷矿 正反浮选 生产实践 

分 类 号：TD97[矿业工程—选矿]