欢迎访问《金属矿山》杂志官方网站,今天是 分享到:
×

扫码分享

金属矿山 ›› 2015, Vol. 44 ›› Issue (06): 74-77.

• 矿物工程 • 上一篇    下一篇

新型抑制剂DLW-4用于鞍千公司混磁精反浮选

潘鹏飞1,朱一民2,徐冬林1,李伟2,李艳军2,韩跃新2   

  1. 1.鞍钢集团鞍千矿业责任有限公司,辽宁 鞍山 114043;2.东北大学资源与土木工程学院,辽宁 沈阳 110819
  • 出版日期:2015-06-15 发布日期:2015-08-05

Application of a New Depressor DLW-4 to Reverse Flotation of the Magnetic Mixed Concentrate from Anqian

Pan Pengfei1,Zhu Yimin2,Xu Donglin1,Li Wei2,Li Yanjun2,Han Yuexin2   

  1. 1.Anqian Mining Co.,Ltd.,Anshan Iron and Steel Group,Anshan 114043,China;2.College of Resource and Civil Engineering,Northeastern University,Shenyang 110819,China
  • Online:2015-06-15 Published:2015-08-05

摘要: 为检验东北大学自主合成的新型抑制剂DLW-4的性能及效果,对鞍钢集团鞍千矿业公司磁选混合精矿(MMC)进行了反浮选条件试验及1粗1精3扫、中矿顺序返回的反浮选闭路试验。结果表明,在浮选温度为40 ℃、粗选NaOH用量为800 g/t、抑制剂DLW-4为342 g/t、活化剂CaCl2为600 g/t、捕收剂RA-715为480 g/t时选别指标最佳。对铁品位为47.74%的磁选混合精矿经1粗1精3扫闭路试验,获得了铁品位为68.08%、回收率为88.20%的铁精矿。与常规淀粉抑制剂相比,DLW-4可以以更少的药剂用量获得更好的反浮选指标,具有推广价值。

关键词: 新型抑制剂DLW-4, 磁选混合精矿, 反浮选

Abstract: In order to test the properties and floating behavior of a new depressor DLW-4 synthesized by Northeastern University,one roughing-one cleaning-three scavenging flotation process was conducted on the Magnetic Mixed Concentrate (MMC)of Anqian Mining Company in Anshan Iron and Steel Group.The results indicated that,at the slurry temperature of 40 ℃,optimum separation index could obtained with NaOH dosage of 800 g/t,depressor DLW-4 of 342 g/t,activator CaCl2 dosage of 600 g/t,collector RA-715 of 480 g/t.Iron concentrate with iron grade of 68.08% and recovery of 88.20% is obtained via one roughing-one cleaning-three scavenging closed circuit flotation operation to dealing with MMC,Fe grade of which is 47.74%.Compared with regular depressor starch,DLW-4 could gain better reverse flotation indexes with relative fewer reagent dosage,and thus have promotional value.

Key words: Novel depressor DLW-4, Magnetic mixed concentrate, Reverse flotation