原生矿泥对鳞片石墨浮选影响机制研究  

Study on the Mechanism of the Effect of Primary Mud on the Flotation of Flake Graphite

作　　者：翟雨可 刘自燕 康文泽[2] 王金玲 申士富 ZHAI Yu-ke;LIU Zi-yan;KANG Wen-ze;WANG Jin-ling;SHEN Shi-fu(Bgrimm Technology Group,Beijing 100160,China;School of Mining and Technology,Heilongjiang University of Science and Technology,Harbin 150022,China;State Key Laboratory of Mineral Processing,Beijing 100160,China)

机构地区：[1]矿冶科技集团有限公司矿物加工科学与技术国家重点实验室,北京100160 [2]黑龙江科技大学矿业学院,黑龙江哈尔滨150022 [3]矿物加工科学与技术国家重点实验室,北京100160

出　　处：《中国非金属矿工业导刊》2024年第3期63-69,共7页China Non-Metallic Minerals industry

基　　金：国家重点研发计划“晶质石墨采选协同短流程鳞片保护工艺技术及装备”(编号:2021YFC2902901)。

摘　　要：我国风化石墨矿储量大,成分复杂,石墨精矿固定碳回收率低。为高效利用风化石墨矿,本文以萝北县云山石墨矿风化矿石矿泥中所含石英、云母、绿泥石、褐铁矿、高岭土等矿物为对象,研究原生矿泥对石墨浮选效果的影响机制,并探索了减小矿泥影响的方法。研究表明,影响石墨浮选的主要原因是矿泥和石墨发生了异相凝聚,云母、高岭石和褐铁矿在石墨表面罩盖严重,长石和绿泥石在石墨表面发生了微弱罩盖,石英和透辉石由于泡沫夹带上浮的可能性较大;水玻璃和六偏磷酸钠作为组合抑制剂使用能有效改善矿泥对石墨选矿的影响。China has a large reserve of weathered graphite ore with complex composition,and the fixed carbon recovery rate of graphite concentrate is low.In order to efficiently utilize weathered graphite ore,this article takes quartz,mica,chlorite,limonite,kaolin and other minerals contained in the weathered ore slurry of Yunshan graphite mine in Luobei county as the object,studies the influence mechanism of primary slurry on graphite flotation efficiency,and explores methods to reduce the influence of slurry.The research shows that the main reasons affecting the graphite flotation are the heterogeneous condensation of slime and graphite,the serious cover of mica,kaolinite and limonite on the surface of graphite,the weak cover of feldspar and chlorite on the surface of graphite,and the greater possibility of quartz and diopside floating up due to foam entrainment;The use of sodium silicate and sodium hexametaphosphate as a combination inhibitor can effectively improve the effect of ore slurry on graphite beneficiation.

关 键 词：鳞片石墨 矿泥 风化矿 异相凝聚 罩盖 

分 类 号：TD975.2[矿业工程—选矿]