美国高镁pebble磷矿白云石浮选试验研究  

Experimental Study on Flotation of Dolomite from High Magnesium Pebble Phosphate Mine in the United States

作　　者：冯春晖 杨勇 王志英 李丰 郭凤云 Feng Chunhui;Yang Yong;Wang Zhiying;Li Feng;Guo Fengyun(Bluestar Lehigh Engineering Institute Co.,Ltd.,Lianyungang,Jiangsu 222004)

机构地区：[1]中蓝连海设计研究院有限公司,江苏连云港222004

出　　处：《非金属矿》2024年第6期72-74,共3页Non-Metallic Mines

摘　　要：采用PA-66作为捕收剂,硫酸作为pH调整剂,进行美国佛罗里达高镁pebble磷矿白云石浮选条件试验及开路平行试验。结果表明,原矿P_(2)O_(5)品位为21.29%,MgO含量(质量分数,下同)为4.06%,经过浮选后可获得P_(2)O_(5)品位为25.57%、MgO含量为0.98%的磷精矿,磷精矿P_(2)O_(5)回收率为73.75%,符合MgO含量小于1%的质量要求。Using PA-66 as collector,sulfuric acid as pH regulator,the dolomite flotation conditions test and open circuit parallel test of the high magnesium Pebble phosphate ore in Florida were carried out.The results showed that after flotation of raw ore with P_(2)O_(5) grade of 21.29% and MgO content(mass fraction)of 4.06%,a phosphorus concentrate with P_(2)O_(5) grade of 25.57% and MgO content of 0.98% could be obtained.The recovery rate of P_(2)O_(5) was 73.75%,and the concentrate met the quality requirement of MgO content less than 1%.

关 键 词：pebble磷矿 白云石浮选 硫酸 白云石捕收剂PA-66 

分 类 号：TD97[矿业工程—选矿]