欢迎访问《现代矿业》杂志官方网站,今天是 分享到:

现代矿业 ›› 2012, Vol. 28 ›› Issue (01): 30-34.

• 采选工程 • 上一篇    下一篇

某金矿浮选试验研究

杜飞飞,杨志军,郭存丰   

  1. 中铁资源集团有限公司
  • 出版日期:2012-01-11 发布日期:2012-01-11

Flotation Test Research of a Gold Mine

Du Feifei,Yang Zhijun,Guo Cunfeng   

  1. China Railway Resources Group Co., Ltd
  • Online:2012-01-11 Published:2012-01-11

摘要: 对金矿原矿品位为1.53 g/t,主要载金矿物为黄铁矿和黄铜矿的某金矿,进行了着重回收金属硫化矿物的探索实验,确定采用碳酸钠调浆和丁铵黑药+丁基黄药组合使用的方式进行浮选条件实验。经过条件试验确定了最佳磨矿细度为-200目65.05%,碳酸钠用量为1 000 g/t,丁铵黑药与丁基黄药配制比例为1∶3,用量为60 g/t。开路试验采用一次粗选、三次精选、一次扫选工艺,由于金精矿品位较高,但一次扫尾矿品位较高,故闭路试验采用一粗、两精、两扫工艺流程,得到了金品位为70.26 g/t、回收率为92.30%的浮选金精矿。  

关键词: 金矿, 浮选, 丁铵黑药, 丁基黄药

Abstract: The explorative experiments on a gold mine mainly consisting of pyrite and chalcopyrite with gold grade of 1.53g / t are made to focus on the recovery of  sulfide metal minerals and to determine the flotation conditions by combining sodium carbonate pulping with Ammonium dibuyldithiophosphate + butyl xanthate. The optimum conditions with grinding fineness of -200 mesh 65.05%, the dosage of sodium carbonate 1 000 g / t, the ratio of ammonium dibuyldithiophosphate and butyl xanthate of 1∶3 at the dosage of 60 g/t are got from the testing. In open-circuit tests, the process of one-roughing, three-cleaning and one-scavenging is adopted, but the higher gold grade results in high gold grade in tailings. Hence, the closed-circuit test process of one-roughing, two-cleaning and two scavenging is adopted, obtaining flotation gold concentrate with Au grade of 70.26 g / t and gold recovery of 92.30%.

Key words: Gold mine, Flotation, Ammonium dibuyldithiophosphate, Butyl xanthate