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黄金科学技术 ›› 2018, Vol. 26 ›› Issue (1): 89-97.doi: 10.11872/j.issn.1005-2518.2018.01.089

• 采选技术与矿山管理 • 上一篇    下一篇

某氰渣工艺矿物学及金浮选工艺研究

宋学文1,朱加乾1,罗增鑫2,陈波1*   

  1. 1.福州大学紫金矿业学院,福建 福州 350108;
    2.紫金矿业集团股份有限公司,福建 上杭 364200
  • 收稿日期:2017-05-05 修回日期:2017-08-28 出版日期:2018-02-28 发布日期:2018-05-19
  • 作者简介:宋学文(1992-),男,陕西延安人,硕士研究生,从事矿物加工工程和尾矿综合回收研究工作。songxwhl@163.com

Study on the Gold Flotation Technology and Process Mineralogy of a Cyanide Residue

SONG Xuewen 1,ZHU Jiaqian 1,LUO Zengxin 2,CHEN Bo 1   

  1. 1.College of Zijin Mining,Fuzhou University,Fuzhou    350108,Fujian,China;2.Zijin Mining Group Co.,Ltd.,Shanghang    364200,Fujian,China
  • Received:2017-05-05 Revised:2017-08-28 Online:2018-02-28 Published:2018-05-19
  • Contact: 陈波(1975-),男,吉林松原人,博士,副教授,从事多金属复杂硫化矿浮选分离技术、低品位金回收及尾矿综合利用等方面的研究工作。chenbo@fzu.edu.cn

摘要:

针对某选矿厂氰渣进行了工艺矿物学研究,得出其中所含可回收利用的金属元素为Au,质量分数为2.51×10-6,主要包裹在黄铁矿和砷黄铁矿中。根据矿石性质,开展了单因素对浮选指标的影响试验,最终确定较适宜的浮选条件:矿石未磨,浓H2SO4除CN-,矿浆pH=6.5,CuSO4用量为150 g/t,丁铵黑药用量为70 g/t,丁基黄药用量为100 g/t,经过一次粗选、两次扫选、三次精选工艺试验,最终取得金精矿中金品位为18.70×10-6、回收率为70.18%的良好指标。

关键词: 氰渣, 工艺矿物学, 金, 黄铁矿, 浮选工艺, 综合利用

Abstract:

A detailed mineralogy process study of a cyanide residue was performed,and the valuable metal elements is gold with the content of 2.51×10-6,which is mainly contained in pyrite and arsenopyrite.Single factor flotation test was performed according to property of mineral ore.Eventually,achieving the grade of gold concentration is18.70×10-6 and recovery is 70.18% in suitable flotation conditions by adding CuSO4,ammonium dibutyl dithiophosphate and buylxanthate,whose dosage are 150×10-6,70×10-6 and 100×10-6,respectively,into the pulp in the test and cyanide residue without grinding,CN- excluded by H2SO4,and the pH of pulp is 6.5,and also performing one roughing,two scavenging and three times cleaning.

Key words: cyanide residue, gold, pyrite, flotation technology

中图分类号: 

  • TD953

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