采用新型捕收剂MOF-100浮选回收某铁尾矿中辉钼矿的研究  

A Study on the Efficient Recovery of Molybdenum from Iron Tailings Using a Novel Collector MOF-100

作　　者：张礼 邹松 王长福[3] ZHANG Li;ZOU Song;WANG Changfu(School of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou,Jiangxi 341000,China;Hebei Non-Coal Mine Development Center,Shijiazhuang,Hebei 075399,China;Changsha Research Institute of Mining&Metallurgy Co.,Ltd.,Changsha,Hunan 410012,China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州市341000 [2]河北省非煤矿山发展中心,河北石家庄075399 [3]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿业研究与开发》2024年第10期265-270,共6页Mining Research and Development

摘　　要：北方某铁尾矿中的主要金属矿物为辉钼矿、磁铁矿和(磁)黄铁矿,钼矿物和铁矿物致密共生,矿物嵌布微细,其中钼金属含量仅为0.08%,硫含量达1.75%。由于尾矿中矿物表面蚀变氧化严重,钼矿物的浮选活性很低,使用传统捕收剂难以实现辉钼矿的有效回收。试验使用兼具捕收能力和选择性的新型捕收剂MOF-100来回收该铁尾矿中的辉钼矿,并取得了良好的选矿效果。通过选矿条件试验确定了适宜的浮选药剂制度,结果表明,在磨矿细度为-0.075 mm占85%的条件下,采用新型高效捕收剂MOF-100,经一次粗选、二次扫选和八次精选闭路流程,可获得Mo品位为40.67%、Mo回收率为63.89%的钼精矿,实现了尾矿中钼资源的综合回收。The main metal minerals in an iron tailings in northern China are molybdenite, magnetite and pyrite or pyrrhotite. Molybdenum minerals and iron minerals are closely symbiotic and finely embedded. The content of molybdenum metal is only 0.08%, and the content of sulfur is 1.75%. Due to the serious alteration and oxidation of the mineral surface in the tailings, the flotation activity of molybdenum is very low, and it's difficult for traditional collectors to achieve effective recovery. Thus, a new collector MOF-100 with both collecting ability and selectivity was introduced to efficiently recover the molybdenite and achieve good beneficiation results. The suitable reagent system for flotation was determined by the mineral processing conditions tests. The results show that under the condition of grinding fineness of-0.075 mm accounting for 85%, the molybdenum concentrates with Mo grade of 40.67% and Mo recovery of 63.89% could be obtained using the new high-efficiency collector MOF-100 through the closed-circuit process of one roughing, two scavenging and eight cleaning, which realized the comprehensive recovery of molybdenum resources from tailings.

关 键 词：铁尾矿 捕收剂 辉钼矿 浮选 

分 类 号：TD923[矿业工程—选矿]