贵州某磷矿双反浮选工艺及机理研究  

Processing Technology and Mechanism for Double Reverse Flotation of Phosphate Ore from Guizhou

作　　者：石波 徐伟 田言 陈跃 李松清 程潜 梅光军[1] SHI Bo;XU Wei;TIAN Yan;CHEN Yue;LI Song-qing;CHENG Qian;MEI Guang-jun(College of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,Hubei,China;State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Associated Resources,Guiyang 550002,Guizhou,China;State Key Laboratory of Mineral Processing,Beijing 102628,China)

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]中低品位磷矿及其伴生资源高效利用国家重点实验室,贵州贵阳550002 [3]矿物加工科学与技术国家重点实验室,北京102628

出　　处：《矿冶工程》2022年第6期74-77,共4页Mining and Metallurgical Engineering

基　　金：贵州省科技计划项目(黔科合支撑[2020]2Y048);矿物加工科学与技术国家重点实验室开放基金(BGRIMM-KJSKL-2021-08)。

摘　　要：贵州某硅钙质磷矿中主要目的矿物为氟磷灰石,主要脉石矿物为石英、白云石以及黏土矿物,矿物共生关系复杂。为了脱除其中的杂质,使用捕收剂WF⁃04和M⁃51,采用双反浮选工艺脱除其中的硅、镁杂质以及倍半氧化物,可得到P_(2)O_(5)品位34.45%、MgO含量0.94%、SiO_(2)含量6.64%、Al_(2)O_(3)含量1.67%、Fe_(2)O_(3)含量0.58%、P_(2)O_(5)回收率79.19%的磷精矿。通过Zeta电位和红外光谱分析研究了脱硅捕收剂M⁃51的作用机理,结果表明,M⁃51通过物理吸附伴随氢键作用有效地吸附在石英表面,而在磷灰石表面几乎不吸附。In a siliceous⁃calcareous phosphate ore in Guizhou,fluorapatite is the main mineral to be recovered,while quartz,dolomite and clay are the main gangue minerals therein,among which there exists a complicated intergrowth relationship.A double reverse flotation process with collectors of WF⁃04 and M⁃51 were adopted to remove the impurities of silicon,magnesium and sesquioxides,leading to a phosphate concentrate grading 34.45%P_(2)O_(5)at 79.19%recovery,with content of MgO,SiO_(2),Al_(2)O_(3) and Fe_(2)O_(3) therein reduced to 0.94%,6.64%,1.67%and 0.58%,respectively.Based on the zeta potential and infrared spectroscopy analyses for the reaction mechanism of M⁃51,it is found that M⁃51 can be effectively adsorbed on quartz via physisorption and hydrogen bonding,although it can be hardly adsorbed on apatite.

关 键 词：浮选 磷矿 双反浮选 倍半氧化物 作用机理 脱硅 脱镁 

分 类 号：TD923[矿业工程—选矿]