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.
作者
李若兰
彭丽群
刘润哲
罗昆义
张朝旺
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)
出处
《云南化工》
CAS
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)。
关键词
低品位
胶磷矿
正-反浮选
实验研究
Low grade
Phosphate ore
Positive and reverse flotation beneficiation
Experimental study
