某金矿浮选试验研究
Flotation Test Research of a Gold Mine
杜飞飞 1杨志军 1郭存丰1
作者信息
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。
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%.
关键词
金矿/浮选/丁铵黑药/丁基黄药Key words
Gold mine/Flotation/Ammonium dibuyldithiophosphate/Butyl xanthate引用本文复制引用
出版年
2012
NETL
NSTL
万方数据