云南晋宁某低品位磷矿选矿技术实验研究  

Experimental Study on Beneficiation Technology of a Low GradePhosphate Ore in Jinning,Yunnan

作　　者：李若兰[1,2] 彭丽群 刘润哲[1,2] 罗昆义 张朝旺[1,2] Li Ruolan;Peng Liqun;Liu Runzhe;Luo Kunyi;Zhang Chaowang(Yunnan Phosphate Chemical Group Co.,Ltd.,Kunming 650600,China;National Phosphate Resources Development and Utilization of Engineering Technology Research Center,Kunming 650600,China)

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

出　　处：《云南化工》2024年第6期49-52,共4页Yunnan Chemical Technology

基　　金：云南省院士专家工作站(项目编号:202205AF150051)。

摘　　要：云南晋宁某低品位胶磷矿属于混合型磷块岩,其w(P2O5)为18.45%,w(MgO)2.39%,w(SiO2)35.88%。在常温条件下,当磨矿细度≤0.074 mm占97.18%时,采用“正-反浮选工艺流程”对该矿进行选别。通过闭路实验获得w(P2O5)28.51%、w(MgO)0.95%、w(SiO2)19.70%、P2O5回收率为81.70%的精矿指标,实现了该矿的有效分选。A low-grade collophanite ore from Jinning,Yunnan Province belongs to mixed phosphate rock,with a w(P 2O 5)grade of 18.45%,w(MgO)2.39%,and w(SiO 2)35.88%.Under normal temperature conditions,when the grinding fineness of-0.074mm accounts for 97.18%,the ore is separated by using the“forward-reverse flotation process”,and the concentrate indexes of w(P 2O 5)28.51%,w(MgO)0.95%,w(SiO 2)19.70%,and w(P 2O 5)recovery of 81.70%are obtained through closed-circuit experiments.The effective sorting of the mine has been realized.

关 键 词：低品位 胶磷矿 正-反浮选 实验研究 

分 类 号：TD97[矿业工程—选矿]