宜昌某低品位胶磷矿反浮选脱镁实验研究  

Demagnesium Performance of Reverse Flotation Test on Collophanite from Yichang

作　　者：沈伟[1] 翁孝卿 朱思宇 杨普佳 毛雨轩 张宁 Shen Wei;Weng Xiaoqing;Zhu Siyu;Yang Pujia;Mao Yuxuan;Zhang Ning(Xingfa School of Mining Egnineering,Wuhan Institute of Technology,Wuhan 430060,China;Jinmen Xinyangfeng Phosphate Fertilizer Co.,Ltd.,Jinmen 448000,China)

机构地区：[1]武汉工程大学,湖北武汉430060 [2]荆门新洋丰中磷肥业有限公司,湖北荆门448000

出　　处：《云南化工》2024年第8期52-55,共4页Yunnan Chemical Technology

基　　金：国家自然科学基金青年科学基金(No.51904208)。

摘　　要：针对宜昌某胶磷矿原矿P_(2)O_(5)品位低,MgO含量高的问题,采用反浮选的工艺流程,硫酸作抑制剂,MG-7为脱镁捕收剂,脱除含镁白云石,以提高精矿的P_(2)O_(5)品位。经磨矿细度实验、药剂制度优化实验确定了开路实验工艺流程,并在此基础上进行了一次粗选、两次扫选的闭路实验,获得精矿的P_(2)O_(5)质量分数为29.38%,回收率为95.82%,MgO质量仅为0.89%的良好指标。To solve the problem of low P_2O_(5) grade and high MgO content of a collophanite from Yichang,reverse flotation process with sulfuric acid as depressant and MG-7 as demagnesium collector was adopted to remove the magnesia-containing dolomite and improve P_2O_(5) grade of concentrate.Based on the grinding fineness test,optimal experiment of reagent regime and open circuit test,closed-circuit tests of one rough selection and two sweeping were carried out.The separation indexes of phosphate concentrate grade(P_2O_5) 29.38%,recovery rate 95.82% and MgO content only 0.89% were obtained.

关 键 词：胶磷矿 反浮选 脱镁 

分 类 号：TD97[矿业工程—选矿]