摘要
微细粒金矿由于嵌布粒度细表面容易氧化,导致浮选速率变慢。通过浮选时间实验考查了搅拌强度对黄铁矿及微细粒金矿的作用。单矿物浮选实验表明,强搅拌作用能显著改善黄铁矿的浮选效果。实际矿石的浮选实验证明,强搅拌技术提高了微细粒金矿的浮选速率和回收率。浮选动力学研究表明,搅拌调浆能显著提高金矿物的浮选速率常数。闭路实验表明,强搅拌-浮选的新工艺提高了微细粒金矿的浮选指标。研究为微细粒金矿的浮选新技术与设备的研究提供参考。
The fine-grained gold ore is easy to oxidize due to the fine disseminated grain size,resulting in a slower flotation rate.The effect of high intensity conditioning on pyrite and fine-grained gold ore was investigated by flotation time experiments.The monomineral flotation experiments showed that high intensity conditioning could significantly improve the flotation effect of pyrite.Flotation experiments of actual ores demonstrated that high intensity conditioning technology improved the flotation rate and recovery rate of the fine-grained gold ore.Flotation kinetic studies showed that high intensity conditioning could significantly increase the flotation rate constant of fine-grained gold minerals.Closed-circuit tests showd that the new process of high intensity conditioning and flotation improved the flotation index of the fine-grained gold ore.The study provides a reference for the research of new flotation technology and equipment for the fine-grained gold ore.
作者
祁忠旭
冯程
孙大勇
李杰
王龙
欧阳林莉
QI Zhongxu;FENG Cheng;SUN Dayong;LI Jie;WANG Long;OUYANG Linli(Changsha Institute of Mining Research Co.,Ltd.,Changsha,Hunan 410012,China)
出处
《矿产综合利用》
2025年第6期33-38,共6页
Multipurpose Utilization of Mineral Resources
关键词
强搅拌
黄铁矿
微细粒金矿
浮选速率
回收率
high intensity conditioning
pyrite
fine-grained gold ore
flotation rate
recovery rate
