东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (4): 575-578.DOI: -

• 论著 • 上一篇    下一篇

新型捕收剂在赤铁矿反浮选中的应用

刘文刚;魏德洲;崔宝玉;皇甫彦;   

  1. 东北大学资源与土木工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家科技支撑计划项目(2008BAB32B14,2008BAB31B03)

Application of a new collector in reverse flotation of hematite

Liu, Wen-Gang (1); Wei, De-Zhou (1); Cui, Bao-Yu (1); Huang, Fu-Yan (1)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Liu, W.-G.
  • About author:-
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摘要： 通过人工混合矿和实际矿石分选实验探讨了N-十二烷基乙二胺(ND)在赤铁矿反浮选中的应用情况.实验结果表明,ND对赤铁矿和石英质量比为1∶1和3∶2的人工混合矿均具有一定的分选能力.在矿浆pH值为7.27、淀粉的质量浓度为3.33 mg/L、捕收剂的质量浓度为40 mg/L时,可获得铁的质量分数为60.36%和61.20%的铁精矿.实际矿石分选实验结果表明,在常温下,当低于0.045 mm的磨矿细度占95.42%,ND用量为200 g/t、NaOH用量为400 g/t、淀粉用量200 g/t时,经一次粗选、一次精选、两次扫选可获得铁的质量分数为66.72%、铁回收率为93.46%的铁精矿.

关键词: N-十二烷基乙二胺, 捕收剂, 赤铁矿, 反浮选

Abstract: Use of N-dodecylethylenediamine (ND) in reverse flotation of hematite was investigated for separation of artificially mixed and actual iron ores. ND effectively separated quartz from hematite when the mass ratio of hematite to quartz was 1:1 and 3:2. At pulp pH of 7.27, 40 mg/L collector and 3.33 mg/L starch yielded product with 60.36% and 61.20% iron, respectively. In room temperature separation trials with actual ore, product containing 66.72% iron and a 93.46% iron recovery were obtained by subjecting iron ore at 95.42% -0.045 mm granularity in the presence of 200 g/t ND, 400 g/t sodium hydroxide, and 200 g/t starch to a coarse sorting, a fine sorting, and two scavenging operations.

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