工艺矿物学在降低磷矿浮选尾矿品位中的应用  

Application of process mineralogy in reducing the grade of phosphate rock flotation tailings

作　　者：庞建涛 李树建 肖喆 杨建光 刘润哲 杨锡婷 PANG Jiantao;LI Shujian;XIAO Zhe;YANG Jianguang;LIU Runzhe;YANG Xiting(National Engineering and Technology Research Center for Development&Utilization of Phosphorous Resources,Kunming 650600,China;Yunnan Phosphate Group Engineering Construction Co.,Ltd.,Kunming 650600,China)

机构地区：[1]国家磷资源开发利用工程技术研究中心,云南昆明650600 [2]云南磷化集团工程建设有限公司,云南昆明650600

出　　处：《磷肥与复肥》2022年第9期34-36,共3页Phosphate & Compound Fertilizer

基　　金：“十三五”国家重点研发计划(2018YFC1900202)。

摘　　要：对云南某浮选厂现有磷矿浮选尾矿进行工艺矿物学研究。通过实验室浮选结果得出:采用总尾矿预先浮选—预选精矿浓缩—再磨—再选流程,既可降低磷尾矿品位,又可保证磷精矿质量,流程也易控制。工业应用中,磷矿浮选尾矿w(P_(2)O_(5))由8%~10%下降到7%以下,磷精矿产率提高3%~5%,提高了磷资源的回收利用率。The process mineralogy of the existing phosphate rock flotation tailings of a flotation plant in Yunnan is studied.The results of laboratory flotation test show that:adopting the process of total tailings pre flotation-pre concentration concentrate concentration-regrinding-reconcentration can not only reduce the tailings grade,but also ensure the concentrate quality,and the process is also easy to control.In industrial application,the P_(2)O_(5)grade of flotation tailings is decreased from 8%-10% to less than 7%,the yield of phosphorus concentrate is increased by 3%-5%,improving the recovery and utilization rate of phosphorus resources.

关 键 词：磷尾矿 工艺矿物学 浮选 

分 类 号：TD97[矿业工程—选矿]