东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (5): 712-715.DOI: 10.12068/j.issn.1005-3026.2014.05.024

• 材料与冶金 • 上一篇    下一篇

从竖罐炼锌蒸馏残渣旋涡炉处理烟化渣中浮选回收银

徐红江1，张廷安1，王吉坤2，谢刚3   

  1. (1东北大学 材料与冶金学院， 辽宁 沈阳110819; 2云南冶金集团总公司， 云南 昆明650051;3昆明冶金研究院， 云南 昆明650093)
  • 收稿日期:2013-07-19 修回日期:2013-07-19 出版日期:2014-05-15 发布日期:2014-08-18
  • 通讯作者: 徐红江
  • 作者简介:徐红江(1972-)，男，宁夏固原人，东北大学博士研究生;张廷安(1960-)，男，河南周口人，东北大学教授，博士生导师;王吉坤(1943-)，男，云南楚雄人，云南冶金集团总公司教授级高级工程师，博士生导师;谢刚(1961-)，男，重庆人，昆明冶金研究院教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(U1202274，51004033，51204040);国家高技术研究发展计划项目(2102AA062303).

Silver Flotation from Vortex Furnace Fuming Slag of Zinc Vertical Distilling Residue

XU Hongjiang1， ZHANG Tingan1， WANG Jikun2， XIE Gang3   

  1. 1 School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China; 2 Yunnan Metallurgy Group， Kunming 650051， China; 3 Kunming Metallurgy Research Institute， Kunming 650093， China.
  • Received:2013-07-19 Revised:2013-07-19 Online:2014-05-15 Published:2014-08-18
  • Contact: XU Hongjiang
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摘要： 由于竖罐蒸馏炼锌工艺中锌精矿所含的银几乎全部进入蒸馏残渣，因此以蒸馏残渣经旋涡炉烟化处理后得到的烟化渣为原料，开展了浮选回收银的研究.浮选实验考查了浮选过程pH值、温度、捕收剂用量、起泡剂用量对粗选过程的影响.在优化的粗选工艺参数条件下进行了多级开路浮选和闭路浮选实验，最终确定采用一粗四精三扫工艺，捕收剂用量800g·t-1，起泡剂用量350g·t-1，获得银精矿品位6100g·t-1，银回收率8610%.

关键词: 竖罐炼锌蒸馏残渣, 烟化渣, 浮选, 银

Abstract: In vertical distilling zinc process， the silver bearing in the zinc concentrate feed primarily remained in the distilling residue. The recovery of silver by flotation from the vortex furnace fuming slag of the distilling residue was investigated. The main parameters including pulp pH， temperature， dosage of the collector and frother which affected the rougher flotation performance were studied. Under the optimized roughing parameters， multistage open circuit and close circuit flotation tests were conducted. Best results were obtained using onestage roughing， fourstage cleaning， and threestage scavenging and the dosage of the collector and frother was 800g·t-1 and 350g·t-1， respectively. The grade of the final silver concentrate was 6100g·t-1 with the silver recovery of 86.10%.

Key words: zinc vertical distilling residue, fuming slag, flotation, silver

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