某萤石-方解石共生矿浮选实验研究  

Experimental Study on Flotation of Fluorite-Calcite Symbiotic Ore

作　　者：李维斯 严伟平[1,2] 曾小波 喻福涛[1,2] 邓建 李伦 LI Weisi;YAN Weiping;ZENG Xiaobo;YU Futao;DENG Jian;LI Lun(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Chengdu 610041,Sichuan,China;Technology Innovation Center for Comprehensive Utilization of Strategic Minerals Resources,Ministry of Natural Resources,Chengdu 610041,Sichuan,China)

机构地区：[1]中国地质科学院矿产综合利用研究所,四川成都610041 [2]自然资源部战略性矿产综合利用工程技术创新中心,四川成都610041

出　　处：《矿冶工程》2024年第1期68-71,共4页Mining and Metallurgical Engineering

基　　金：贵州省科学技术厅科技重大专项项目(黔科合战略找矿[2022]ZD006);中国地质调查局地质调查项目(DD20230039)。

摘　　要：某萤石-方解石共生矿CaF_(2)含量31.09%、CaCO_(3)含量53.23%,主要有用矿物为萤石,主要脉石矿物为方解石、石英和长石等。浮选实验结果表明,原矿磨矿细度-0.074 mm粒级占75%,以酸化水玻璃和EM-318作抑制剂、EM-OL-3作捕收剂,采用两粗一扫八精闭路浮选,最终得到CaF_(2)品位97.26%、回收率86.55%的萤石精矿,质量达到萤石行业标准(YB/T 5217—2005)中FC-97A品质要求,可作为高端氟化工行业的原料。Flotation tests were carried out for a fluorite-calcite symbiosis ore containing 31.09%CaF_(2)and 53.23%CaCO_(3),with the predominately valuable mineral of fluorite,and the dominantly gangue minerals of calcite,quartz and feldspar.After being milled to a fineness of-0.074 mm 75%,the ore was processed with acidized sodium silicate and EM-318 as depressants and EM-OL-3 as collector.Adopting a close-circuit flowsheet consisting of two stages of roughing,one stage of scavenging and eight stages of cleaning,a fluorite concentrate grading 97.26%CaF_(2)at 86.55%recovery can be obtained.Qualified as an acid-grade fluorite powder(with grade FC-97A)according to the Industry Standard for Ferrous Metallurgy(YB/T 5217-2005(Fluorspar)),this fluorite concentrate can be used as the raw material in high-end fluorine chemical industry.

关 键 词：萤石 方解石 浮选 抑制剂 捕收剂 

分 类 号：TD923[矿业工程—选矿]