阳离子浮选体系中蓝晶石族矿物与石英的交互影响  

Interaction of Kyanite Group Minerals and Quartz in Cationic Flotation System

作　　者：许洪峰 牛艳萍 XU Hongfeng;NIU Yanping(Heilongjiang Mining Group Co Ltd,Harbin 150030,Heilongjiang,China;Heilongjiang Provincial Research Center of Geological and Mineral Experimental Testing,Harbin 150030,Heilongjiang,China)

机构地区：[1]黑龙江省矿业集团有限责任公司,黑龙江哈尔滨150030 [2]黑龙江省地质矿产实验测试研究中心,黑龙江哈尔滨150030

出　　处：《矿冶工程》2023年第3期56-60,共5页Mining and Metallurgical Engineering

基　　金：矿物加工科学与技术国家重点实验室开放研究基金项目(BGRIMM-KJSKL-2017-11)。

摘　　要：运用扩展DLVO理论和显微镜分析,研究了阳离子浮选体系中蓝晶石族矿物与石英的交互作用机理。结果表明,在pH=8、FeCl_(3)·6H_(2)O用量30 mg/L、十二胺用量80 mg/L条件下,各粒级石英与不同粒级蓝晶石族矿物存在交互作用,颗粒之间的黏附罩盖是造成蓝晶石族矿物与石英浮选过程中交互影响的主要原因之一;蓝晶石族矿物与石英之间吸附作用力从大到小的顺序为:红柱石与石英、蓝晶石与石英、硅线石与石英,表明红柱石与石英的浮选分离相对困难。The interaction mechanism of kyanite group minerals and quartz in cationic flotation system was studied by using an extended DLVO(EDLVO)theory combined with microscopy analysis.The results show that,under conditions including pH value of 8,FeCl_(3)·6H_(2)O dosage of 30 mg/L and dodecylamine dosage of 80 mg/L,there is interaction between quartz and kyanite group minerals in various size fraction,and the adhesive coating among particles is one of the main reasons for the interaction between kyanite group minerals and quartz amidst flotation process.Besides,the adsorption force between kyanite group minerals and quartz is in the following descending order:andalusite/quartz≥kyanite/quartz≥sillimanite/quartz,indicating that it is relatively difficult for andalusite to be separated from quartz by flotation.

关 键 词：蓝晶石族矿物 十二胺 浮选交互影响 扩展DLVO理论 蓝晶石 红柱石 硅线石 石英 

分 类 号：TD923[矿业工程—选矿]