水杨羟肟酸体系下不同外部因素对氟碳铈矿可浮性影响及调控  

Influence and Regulation of Calcium and Magnesium Ions on the Floatability of Bastnaesite in Salicylhydroxamic Acid Flotation System

作　　者：王鑫 王亚运 康金星 刘志国[1] WANG Xin;WANG Yayun;KANG Jinxing;LIU Zhiguo

机构地区：[1]中国恩菲工程技术有限公司,北京100038

出　　处：《中国矿山工程》2024年第5期78-83,共6页China Mine Engineering

摘　　要：本文以水杨羟肟酸为捕收剂,通过氟碳铈矿纯矿物浮选试验,考察了不同外部环境因素对氟碳铈矿可浮性影响及相应调控。纯矿物试验研究结果表明,以水杨羟肟酸做捕收剂,溶液中金属离子离子对氟碳铈矿的浮选过程均表现出不同程度的抑制作用。通过添加活化剂硝酸铅,可调控受到金属离子和矿浆温度抑制的氟碳铈矿的可浮性。以硝酸铅为活化剂,且硝酸铅预先与水杨羟肟酸混合,可以改善受钙镁离子影响的氟碳铈矿可浮性,且水杨羟肟酸与硝酸铅的比例在5∶(3~1)之间,氟碳铈矿的回收率均在90%以上。Both metal ions and slurry temperature have a negative impact on the floatability of fluorocarbon cerium ore,thereby affecting the grade and recovery rate of bastnaesite concentrate.Through the flotation test of bastnaesite pure mineral,the paper investigated the effects of different external environmental factors on the floatability of fluorocarbon cerium ore and regulatory control,with salicylhydroxamic acid as the collector.The experimental results showed that metal ionsand and slurry temperature have different degrees of inhibition on the flotation process of bastnaesite.The floatability of bastnaesite inhibited by metal ions and slurry temperature can be adjusted by adding lead nitrate as activator.Using lead nitrate as activator and mixing lead nitrate with salicylhydroxamic acid in advance can improve the floatability of bastnaesite inhibited by metal ions.The ratio of salic hydroxamic acid to lead nitrate was between 5:(3-1),and the recovery rate of bastnaesite was more than 90%.

关 键 词：水杨羟肟酸 离子 可浮性 调控 

分 类 号：TD952[矿业工程—选矿]