欢迎访问《金属矿山》杂志官方网站,今天是 分享到:

金属矿山 ›› 2017, Vol. 46 ›› Issue (07): 190-192.

• 综合利用 • 上一篇    下一篇

从某金尾矿中浮选回收金

李日升1,2,3,翟旭东1,2,冯玉怀1,2,兰新哲3,靳建平1,2,沈宇2   

  1. 1.陕西省矿产资源综合利用工程技术研究中心,陕西 西安 710054;2.西北有色地质矿业集团有限公司,陕西 西安 710054;3.西安建筑科技大学冶金工程学院,陕西 西安 710055
  • 出版日期:2017-07-15 发布日期:2017-09-13

Flotation on Recovery Gold from Gold Tailings

Li Risheng1,2,3,Zhai Xudong1,2,Feng Yuhuai1,2,Lan Xinzhe3,Jin Jianping1,2,Shen Yu2   

  1. 1.Engineering & Technology Center for Comprehensive Utilization of Mineral Resource in Shaanxi Province,Xi'an 710054,China;2.Northwest Nonferrous Geological Mining Group Co.,Ltd.,Xi'an 710054,China;3.School of Metallurgical Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China
  • Online:2017-07-15 Published:2017-09-13

摘要: 某金矿尾矿库内堆存有金品位为0.70 g/t的尾矿约100万t,尾矿粒度粗细不均,+150 μm占46.25%、-74 μm占26.50%,金在粗、细粒级有一定程度的富集。为了开发该二次资源,进行了浮选选金试验。结果表明,试样在磨矿细度为-74 μm占80%的情况下,以硫酸为矿浆pH调整剂、硫酸铜为活化剂、Y89黄药为捕收剂,采用2粗2精1扫、中矿顺序返回流程处理,可获得金品位为30.88 g/t、金回收率为59.11%的金精矿。

关键词: 金尾矿, 回收, 浮选

Abstract: There is 1.0 Mt tailings resources with gold grade of 0.70 g/t in tailings pond of a gold plant.Tailings particle size was uneven,+150 μm accounted for 46.25%,-74 μm accounted for 26.50%.There was gold enrichment in crude and fine fraction.To make use of the secondly resources,recycle the gold,gold flotation experiment was carried out.Result showed that at grinding fineness of -74 μm 80%,with sulfuric acid as pH adjustment,copper sulfate as activator,and Y89 xanthate as collector,via two roughing-two cleaning-one scavenging and middling return to the flowsheet in turn process,gold concentrate with gold grade of 30.88 g/t and recovery of 59.11% was obtained.

Key words: Gold tailings, Recovery, Flotation