新疆某低品位萤石矿浮选实验研究  

Flotation of a Low Grade Fluorite Ore in Xinjiang

作　　者：李伦 曾小波[1] 严伟平[1] 李维斯 Li Lun;Zeng Xiaobo;Yan Weiping;Li Weisi(Institute of Multipurpose Utilization of Mineral Resources,CAGS,Technology Innovation Center for Comprehensive Utilization of Strategic Minerals Resources,Ministry of Natural Resources,Chengdu,Sichuan,China)

机构地区：[1]中国地质科学院矿产综合利用研究所,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：《矿产综合利用》2023年第4期127-132,共6页Multipurpose Utilization of Mineral Resources

基　　金：中国地质调查局地质大调查项目(DD20230039)。

摘　　要：这是一篇矿物加工工程领域的论文。新疆某低品位萤石矿主要由萤石(28.85%)、方解石(43.26%)、石英(12.01%)和长石(10.28%)四种矿物组成。通过详细的选矿实验研究,在磨矿细度为-0.074 mm 65%时,以酸化水玻璃和改性碳水化合物EM-318为方解石抑制剂,植物基脂肪酸皂EM-OL3为萤石捕收剂,采用“两次粗选一次扫选八次精选”的工艺流程,浮选闭路实验获得了CaF_(2)品位97.59%,CaF_(2)回收率90.98%的萤石精矿。该实验研究表明,改性碳水化合物EM-318为方解石抑制剂,与植物基脂肪酸皂EM-OL3为萤石捕收剂配合使用,能够高效地实现萤石与方解石的分离。This is an essay in the field of mineral processing engineering.A low-grade fluorite ore is mainly composed of fluorite(28.85%),calcite(43.26%),quartz(12.01%) and feldspar(10.28%).Through detailed beneficiation test research,using acidized water glass and modified carbohydrate EM-318 as calcite inhibitors and using plant-based fatty acid soap EM-OL3 as fluorite collector,the fluorite concentrate with a grade of 97.59% and recovery of 90.98 % was obtained by the flowsheet of "-0.074 mm accounting for 65%,two roughings,one scavenging,and eight cleanings ".This experimental study shows that the combination of modified carbohydrate EM-318 and plant based fatty acid soap EM-OL3 as fluorite collector can efficiently separate fluorite from calcite,

关 键 词：矿物加工工程 萤石 方解石 捕收剂 回收率 

分 类 号：TD97[矿业工程—选矿] TD923