脉动高梯度磁选分离微细铜钼混合精矿试验研究

金属矿山 ›› 2024, Vol. 53 ›› Issue (2): 171-.

脉动高梯度磁选分离微细铜钼混合精矿试验研究

杨康宁¹　曾剑武¹　杨　晶¹　黄会春^1,2　谢金成¹　邵延海¹　陈禄政¹

1. 昆明理工大学国土资源工程学院,云南昆明 650093;2. 赣州金环磁选科技装备股份有限公司,江西赣州 341000

出版日期:2024-02-15 发布日期:2024-04-03
基金资助:
国家自然科学基金项目(编号:52104255,52264029);云南省基础研究计划项目(编号:202201AU070139)。

Experimental Study on Separation of Ultra-fine Copper-Molybdenum Bulk Concentrate by Pulsating High Gradient Magnetic Separation

YANG Kangning¹　ZENG Jianwu¹　YANG Jing¹　HUANG Huichun^1,2　XIE Jincheng¹#br# SHAO Yanhai¹　CHEN Luzheng¹#br#

1. Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China; 2. SLon Magnetic Separator Co. ,Ltd. ,Ganzhou 341000,China

Online:2024-02-15 Published:2024-04-03

摘要/Abstract

摘要： 黄铜矿(顺磁性)和辉钼矿(逆磁性)存在微弱的磁性差异,可以通过高梯度磁选分离。采用SLon-100 型周期式脉动高梯度磁选机,对金堆城钼业某铜钼混合浮选粗精矿(铜、钼品位分别为14. 42%和12. 40%、-0. 019 mm 产率83. 80%)进行了黄铜矿与辉钼矿分离试验研究。结果表明,在脉动冲程为5 mm、脉动冲次为150 r/ min、棒介质直径为1. 5 mm、矿浆流速为2. 0 cm/ s、粗选磁感应强度为1. 6 T、扫选磁感应强度为1. 7 T 的条件下,经1 粗1 扫脉动高梯度强磁选,获得了产率48. 64%、铜品位22. 82%、钼品位4. 40%和铜回收率77. 82%的铜精矿,及产率51. 36%、铜品位6. 16%、钼品位19. 96%和钼回收率82. 73%的钼精矿,实现了有效的微细粒铜钼矿物分离。研究结果证明了脉动高梯度磁选分离微细粒铜钼混合精矿的有效性,可以为类似铜钼混合精矿的绿色分离提供指导。

关键词: 脉动高梯度磁选　微细铜钼分离　分离工艺

Abstract: Chalcopyrite is paramagnetic and molybdenite is diamagnetic,and thus they are separatable through high gradient magnetic separation. A SLon-100 periodic pulsating high gradient magnetic separator was used to separate a roughing concentrate of chalcopyrite-molybdenite co-flotation from Jinduicheng Molybdenum Industry, which assays 14. 42% Cu and 12. 40% Mo,with -0. 019 mm ultra-fine fraction weighting 83. 80%. The results showed that under the conditions of a pulsating stroke of 5 mm,a pulsating frequency of 150 r/ min,a rod diameter of 1. 5 mm in matrix,a slurry flow rate of 2. 0 cm/ s,a roughing magnetic induction of 1. 6 T and a scavenging magnetic induction of 1. 7 T,a copper concentrate with a yield of 48. 64%,Cu grade of 22. 82%,Mo grade of 4. 40%,and Cu recovery of 77. 82% and a molybdenum concentrate with a yield of 51. 36%,Cu grade of 6. 16%,Mo grade of 19. 96%,and Mo recovery of 82. 73% were respectively obtained via one roughing and one scavenging pulsating high gradient magnetic separation process. This effective separation for the ultra-fine chalcopyritemolybdenite concentrate demonstrated the availability of pulsating high gradient magnetic separation technology for separating the ultra-fine copper-molybdenum concentrate,providing a valuable reference for the environment-friendly separation of similar copper-molybdenum bulk concentrates.

Key words: pulsating high gradient magnetic separation,ultra-fine copper-molybdenum separation,separation process

杨康宁, 曾剑武, 杨　晶, 黄会春, 谢金成, 邵延海, 陈禄政. 脉动高梯度磁选分离微细铜钼混合精矿试验研究[J]. 金属矿山, 2024, 53(2): 171-.

YANG Kangning, ZENG Jianwu, YANG Jing, HUANG Huichun, XIE Jincheng, SHAO Yanhai, CHEN Luzheng. Experimental Study on Separation of Ultra-fine Copper-Molybdenum Bulk Concentrate by Pulsating High Gradient Magnetic Separation[J]. Metal Mine, 2024, 53(2): 171-.

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