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金属矿山 ›› 2013, Vol. 42 ›› Issue (08): 61-65+73.

• 矿物工程 • 上一篇    下一篇

某铋锌铁多金属矿石选矿试验

唐雪峰,常庆伟   

  1. 长沙矿冶研究院有限责任公司
  • 出版日期:2013-08-15 发布日期:2013-09-27

Beneficiation Experiments of a Bi-Zn-Fe Multi-metal Ore

Tang Xuefeng,Chang Qingwei   

  1. Changsha Research Institute of Mining and Metallurgy Co.,Ltd.
  • Online:2013-08-15 Published:2013-09-27

摘要: 为了给某铋锌铁多金属矿石的合理开发利用提供依据,针对矿石性质特点,选择SN-9#作为铋矿物的选择性捕收剂,采用铋锌依次浮选—弱磁选工艺流程进行选矿试验,并在浮铋粗选时添加组合抑制剂Na2SO3+ZnSO4,在浮铋精选和浮锌精选时分别添加新型环保高效抑制剂CK-1#和CK-2#,获得了铋品位为17.96%、铋回收率为68.08%的铋精矿,锌品位为48.03%、锌回收率为88.61%的锌精矿和铁品位为66.11%、铁回收率为66.15%的铁精矿,有效实现了铋、锌、铁的综合回收。此外,铋精矿和锌精矿中还分别富集了823.57 g/t的银和301 g/t的铟。

关键词: 铋锌铁多金属矿石, 铋锌依次浮选, 弱磁选, 抑制剂CK-1#, 抑制剂CK-2#

Abstract: In order to provide a basis for rational development and utilization of a Bi-Zn-Fe polymetallic ore,and in view of the nature of the ore,using SN-9# as selective collector of bismuth minerals,beneficiation experiments is made by the process of bismuth-zinc successive flotation-low intensity magnetic separation.With the addition of combined depressant Na2SO3 + ZnSO4 in coarse concentration,and new environment-friendly efficient inhibitors CK-1# and CK-2# in clean flotation of bismuth and zinc respectively,bismuth concentrate with Bi grade of 17.96% and Bi recovery of 68.08%,zinc concentrate with Zn grade of 48.03% and Zn recovery of 88.61%,and iron concentrate with Fe grade of 66.11% and Fe recovery of 66.15% are obtained separately,which effectively realizes the comprehensive recovery of bismuth,zinc and iron.In addition,silver 823.57 g/t and indium 301 g/t are also enriched from bismuth concentrate and zinc concentrate.

Key words: Bismuth-zinc-iron polymetallic ore, Bismuth-zinc successive flotation, Low intensity magnetic separation, Depressant CK-1#, Depressant CK-2#