摘要
对某低品位原生金矿进行了选矿试验研究。通过对浮选指标各影响因素的优化,得出了粗选最佳选别条件:磨矿细度-200目65%;pH值调整剂碳酸钠用量1500g/t,相应pH值为8.5;浮选浓度31%;丁基黄药用量60g/t;2#油用量35g/t。在此条件下,进行了一次粗选、三次精选、两次扫选的实验室闭路试验,可获得金精矿品位29.8g/t、回收率为94.59%的较好指标。试验结果表明,该低品位金矿可以通过浮选达到预先富集的目的。
The benefication test of a low-grade gold ore was performed.The optimal roughing conditions were achieved by optimizing the influence factors of flotation index,they are grinding size of 85%-200mesh,pH is 8.5,and modifier dosage of Na2CO3is 1500g/t,and flotation concentrationis 31%,and reagent collector dosage of butyl xanthate is 60g/t,and iol is 35g/t.Laboratory test through a flotation flowsheet of＂ one-stage roughing,three-stage cleaning and two-stage scaveng ing＂ at the optimal operating condition was performed.The gold with the grade of 29.8g/t and the recovery of 94.59%can be obtained.It showed that this low-grade primary gold ore can be andvancly enriched by flotation.
出处
《中国矿业》
北大核心
2010年第11期89-91,共3页
China Mining Magazine
关键词
低品位
原生金矿
浮选
可浮性
low-grade
primary gold ore
flotation
floatability
