复合捕收剂对白云鄂博稀土矿浮选分离效果的影响研究  

Effect of Compound Collectors on Flotation Separation of Bayan Obo Rare Earth Ore

作　　者：吴旭 曹永丹 王丽明[2] 曹钊 Wu Xu;Cao Yongdan;Wang Liming;Cao Zhao(School of Mining and Coal Engineering,In-ner Mongolia University of Science and Technology,Inner Mongolia Key Laboratory of Mining Engi-neering,Collaborative Innovation Center of Integrated Exploitation of Bayan Obo Multi-Metal Re-sources,Baotou 014010,China;Mining Research Institute Co.,Ltd.,Baotou Steel Group,Baotou 014010,China)

机构地区：[1]内蒙古科技大学矿业与煤炭学院,内蒙古自治区矿业工程重点实验室,白云鄂博共伴生矿资源高效综合利用省部共建协同创新中心,内蒙古包头014010 [2]包钢集团矿山研究院,内蒙古包头014010

出　　处：《中国稀土学报》2023年第5期1022-1028,I0005,共8页Journal of the Chinese Society of Rare Earths

基　　金：国家重点研发计划项目(2021YFC2901000);国家自然科学基金项目(51764045);内蒙古自然科学基金项目(2019MS05039)资助。

摘　　要：为了提高白云鄂博稀土矿的浮选回收效果,进行了单一捕收剂和复合捕收剂的一段浮选条件试验和1粗3精闭路浮选对比试验。结果表明:使用复合捕收剂8#药/OP进行浮选的最佳OP占比为α_((OP))=0.2;经一段浮选,稀土品位由9.58%提高至34.14%,稀土回收率为88.98%,相对单一捕收剂,稀土精矿REO品位提高了8.06%;经1粗3精闭路浮选,使用复合捕收剂,可得REO品位54.81%,回收率75.92%的稀土精矿,相对于使用单一捕收剂的工艺,稀土品位提高了2.79%,回收率提高了3.8%。浮选试验和矿物分析结果表明,非离子表面活性剂OP有利于提高捕收剂8#药对白云鄂博稀土矿的浮选回收效果,且复合捕收剂比单一捕收剂更有利于微细粒级稀土矿物的回收。To enhance flotation efficiency of rare earth minerals in Bayan Obo ore,the flotation condition tests of single collector and compound collectors and their comparison tests by close-circuit of one roughing-three cleaning flotations were carried out.The results show that the optimum OP ratio of flotation using composite col⁃lectors 8#reagent/OP is α_((OP))=0.2.After one stage flotation,the grade of rare earth concentrates increases from 9.58%to 34.14%,and the recovery is 88.98%.Compared with single collector,the grade of rare earth concen⁃trates increases by 8.06%.In the close-circuit of one roughing-three cleaning floatation process,the grade of rare earth concentrate reaches 54.81%and the recovery reaches 75.92%by using compound collectors.Com⁃pared with single collector,the grade of rare earth concentrates increases by 2.79%,and the recovery increases by 3.8%.The results of flotation experiment and mineral analysis show that the non-ionic surfactant OP enhanc⁃es the recovery of rare earth minerals,and is more conducive to the recovery of fine rare earth minerals.

关 键 词：复合捕收剂 非离子表面活性剂 白云鄂博矿 稀土矿物 矿物组成 

分 类 号：TD955[矿业工程—选矿]