快速浮选分离滑石与辉钼矿动力学研究  

Flotation Kinetics Study for Efficient Separation of Talc and Molybdenite by Flash Flotation

作　　者：陈帆帆 郑灿辉 卜显忠[2] CHEN Fanfan;ZHENG Canhui;BU Xianzhong(Lanzhou Engineering&Research Institute of Nonferrous Metallurgy Co.,Ltd.,Lanzhou 730000,Gansu,China;School of Resource Engineering,Xi′an University of Architecture and Technology,Xi′an 710055,Shaanxi,China;Hunan Yunxuan Mining Technology Co.,Ltd.,Loudi 417000,Hunan,China;Guangnan Yumo Titanium Placer Mine,Anning Zhongli Economic&Trade Co.,Ltd.,Wenshan 663000,Yunnan,China)

机构地区：[1]兰州有色冶金设计研究院有限公司,甘肃兰州730000 [2]西安建筑科技大学资源工程学院,陕西西安710055 [3]湖南云选矿业科技有限责任公司,湖南娄底417000 [4]安宁市众力经贸有限公司广南县玉莫钛砂矿,云南文山663000

出　　处：《矿冶工程》2024年第5期70-74,共5页Mining and Metallurgical Engineering

摘　　要：采用快速浮选技术对滑石与辉钼矿单矿物进行高效分离试验研究。在矿物粒度0.043~0.074 mm、起泡剂MIBC用量20 g/t、浮选时间60 s条件下,滑石回收率76.64%,辉钼矿回收率仅19.72%,实现了滑石与辉钼矿的高效分离。采用MATLAB软件对浮选速率动力学方程进行非线性拟合,结果表明,滑石浮选过程符合经典一级浮选动力学模型,辉钼矿浮选过程符合修正后的经典一级浮选动力学模型。浮选时间对起泡剂MIBC在滑石和辉钼矿表面吸附量试验结果表明,浮选前期,滑石比辉钼矿更容易与药剂作用,此时滑石表面起泡剂MIBC吸附量远大于辉钼矿表面。An experimental study was performed on efficient separation of talc and molybdenite by adopting flash flotation.With grain fineness of 0.043-0.074 mm,20 g/t of frother MIBC,and flotation time of 60 seconds,the talc recovery attains 76.64%,while the recovery of molybdenite is only 19.72%,resulting in an efficient separation between talc and molybdenite.According to the nonlinear fitting of flotation kinetic equation by MATLAB,talc flotation process conforms to the classic first-order flotation kinetic model,while molybdenite flotation conforms to the modified classic first-order flotation kinetic model.The following test on the influence of flotation time on adsorption of MIBC on talc and molybdenite shows that talc is more likely to interact with the agent than molybdenite at the early stage of flotation,and much more MIBC is adsorbed on talc than on molybdenite at that stage.

关 键 词：滑石 辉钼矿 快速浮选 浮选动力学 非线性拟合 

分 类 号：TD923[矿业工程—选矿]