从石墨尾矿中回收绢云母的试验研究

金属矿山 ›› 2025, Vol. 54 ›› Issue (10): 105-110.

从石墨尾矿中回收绢云母的试验研究

刘佳倪^1,2　刘淑贤^1,2　刘　悦^1,2　胡晨曦^1,2　高志刚³　张相国³ 王　玲^1,2　聂轶苗^1,2　韩秀丽^1,2

1. 华北理工大学矿业工程学院,河北唐山063210;2. 河北省矿业开发与安全技术重点实验室,河北唐山 063210;
3. 黑龙江龙兴国际资源开发集团有限公司,黑龙江哈尔滨 150000

出版日期:2025-10-15 发布日期:2025-11-06
通讯作者: 刘淑贤(1970—),女,教授,博士,硕士研究生导师。
作者简介:刘佳倪(2000—),女,硕士研究生。
基金资助:
黑龙江省揭榜挂帅项目(编号:2023ZXJ05A02)。

Experimental Study on Recovery of Sericite from Graphite Tailings

LIU Jiani1,2　LIU Shuxian1,2　LIU Yue1,2　HU Chenxi1,2　GAO Zhigang3　ZHANG Xiangguo3　WANG Ling1,2　NIE Yimiao1,2　HAN Xiuli1,2#br#

1. School of Mining Engineering,North China University of Science and Technology,Tangshan 063210,China;
2. Key Laboratory of Mining Development and Safety Technology of Hebei Province,Tangshan 063210,China;
3. Heilongjiang Longxing International Resources Development Co. ,Ltd. ,Harbin 150000,China

Online:2025-10-15 Published:2025-11-06

摘要/Abstract

摘要： 为实现黑龙江某石墨浮选尾矿的资源化利用,开展了绢云母回收工艺技术研究。首先通过化学多元素
分析、X 射线衍射(XRD)及光学显微镜鉴定等手段进行了工艺矿物学研究,明确尾矿以石英、绢云母和长石为主要组
成矿物,其绢云母含量为20%~35%,且分布均匀。在此基础上,通过系列浮选条件试验,确定了粗选段的最佳工艺参
数为:磨矿细度-200 目占72%、矿浆浓度20%、pH = 2. 0、捕收剂十二胺用量3 500 g/ t、抑制剂六偏磷酸钠用量600
g/ t;此条件下粗精矿再磨后再进行3 次精选,最终获得绢云母含量74. 40%、回收率75. 01%的优质精矿产品。化学分
析表明,该产品各项指标均符合《绢云母粉》(JC/ T 2577—2020)标准要求,产品可用于涂料、塑料、电子和化妆品领
域。研究表明,采用浮选法从该石墨尾矿中高效回收绢云母技术可行,为石墨尾矿的高值化利用提供了切实途径。

关键词: 石墨尾矿　绢云母回收　浮选　十二胺

Abstract: In order to achieve the resource utilization of a graphite flotation tailing in Heilongjiang,research on the
process technology for recovering sericite was conducted. Process mineralogy studies were first carried out through chemical
multi-element analysis,X-ray diffraction(XRD),and optical microscopy identification. The results showed that the tailings are
mainly composed of quartz,sericite,and feldspar,with a sericite content ranging from 20% to 35%,which is uniformly distributed.
Based on this,a series of flotation condition tests were performed to determine the optimal parameters for the roughing
stage,in which grinding fineness of 72% passing -200 mesh,pulp density of 20%,pH of 2. 0,collector(dodecylamine) dosage
of 3 500 g/ t,and depressant(sodium hexametaphosphate) dosage of 600 g/ t. Under these conditions,the rough concentrate was
reground and subjected to three stages of cleaning,ultimately yielding a high-quality concentrate with sericite content of
74. 40% and recovery rate of 75. 01%. Chemical analysis indicated that the product meets all the requirements of the Sericite
Powder (JC/ T 2577—2020) standard and can be used in coatings,plastics,electronics,and cosmetics industries. The study
demonstrates that the flotation method is technically feasible for efficiently recovering sericite from this graphite tailing,providing
a practical pathway for the high-value utilization of graphite tailings.

Key words: graphite tailings,sericite recovery,flotation,dodecylamine

中图分类号:

TD989
X758

刘佳倪, 　刘淑贤, 　刘　悦, 　胡晨曦, 　高志刚　张相国王　玲, 　聂轶苗, 　韩秀丽, . 从石墨尾矿中回收绢云母的试验研究[J]. 金属矿山, 2025, 54(10): 105-110.

LIU Jiani, 　LIU Shuxian, 　LIU Yue, 　HU Chenxi, 　GAO Zhigang　ZHANG Xiangguo　 WANG Ling, 　NIE Yimiao, 　HAN Xiuli, . Experimental Study on Recovery of Sericite from Graphite Tailings[J]. Metal Mine, 2025, 54(10): 105-110.

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