欢迎访问昆明冶金高等专科学校学报官方网站,今天是 分享到:

昆明冶金高等专科学校学报 ›› 2022, Vol. 38 ›› Issue (6): 6-.DOI: 10.3969/j.issn.1009-0479.2022.06.002

• 资源开发与测绘 • 上一篇    下一篇

云南某褐铁粗精矿强化还原焙烧—弱磁选试验研究

聂 琪1 ,朱 宁2 ,张汉平1 ,武俊杰3   

  1. (1昆明冶金高等专科学校冶金与矿业学院,云南 昆明 650033;2云南恩菲科技集团有限公司,云南 昆明 650000;3陕西省地质矿产实验研究所有限公司,陕西 西安 710000)

  • 收稿日期:2022-06-13 出版日期:2022-12-14 发布日期:2023-11-15
  • 作者简介:聂 琪 (1984-),女,陕西富平人,副教授,工学硕士,主要从事选矿工艺与理论研究。

Experimental Study on the Enhanced Reduction RoastingWeak Magnetic Separation of a Limonite Concentrate in Yunnan

NIE Qi1 ,ZHU Ning2,ZHANG Hanping1,WU Junjie3   

  1. (1. Faculty of Metallurgy and Mining, Kunming Metallurgy College, Kunming 650033 , China ;2. Yunnan Enfi Technology Group Co. ,Ltd. , Kunming 650000, China;3. Shanxi Provincial Geology and Mineral Experiment Research Institute Co. , Ltd. , Xian 710000, China)
  • Received:2022-06-13 Online:2022-12-14 Published:2023-11-15

摘要: 针对云南某褐铁矿选厂强磁选后得到的铁粗精矿品位 (Fe5235%)较低的问题,在工艺矿物学研究的基础上进行试验研究:在催化剂添加量14%,还原剂添加量12%,焙烧温度1050℃,焙烧时间 30min的条件下,采用 “强化还原焙烧—弱磁选”工艺获得了精矿产率6795%、品位 TFe7089%、回收率9194%的良好技术指标。


关键词: 褐铁矿, 焙烧, 磁选, 选冶联合工艺, 催化剂

Abstract:  Aiming at the low grade of iron concentrate ( Fe 52. 35% ) obtained after strong magnetic separation in a limonite concentrator in Yunnan, a detailed experimental study was carried out on the basis otprocess mineralogical research. Under the conditions of catalyst addition amount of 14% , reducing agentaddition amount of 12% , roasting temperature of 1 050 C , and roasting time of 30 minutes , the “enhancereduction roasting-weak magnetic separation"process was used to obtain a concentrate rate of 67.95% anda grade of TFe of 70. 89% ,a good technical index with a recovery rate of 91. 94%.

Key words: limonite, roasting, magnetic separation, combined process of dressing and metallurgy , catalyst

中图分类号: