摘要
针对传统选锑活化剂硝酸铅所存在的诸多问题,对锑品位为3.18%、硫化锑占总锑的95.60%的湖南某锑矿石进行了无铅活化浮选试验。结果显示,矿石在磨矿细度为-74μm占89.30%的情况下,以硫酸铜+硫酸铁+硫酸亚铁(质量配合比为1∶1∶1)为活化剂,以丁基黄药+MA-1(质量配合比为2∶3)为捕收剂,采用1粗3精2扫、中矿顺序返回流程处理,获得了锑品位为46.15%、回收率为95.04%的锑精矿,表明硫酸铜+硫酸铁+硫酸亚铁是辉锑矿浮选的良好无铅活化剂。
In view of the shortcomings of traditional antimony selective activator lead nitrate,antimony ore was tested by lead-free activated flotation with an antimony content of 3.18% and an antimony sulfide content of 95.60% of the total antimony ore in Hunan province.The tests results indicated that under conditions of ore in the grinding fineness of-74 μm accounted for89.30%,good beneficiation indexes were obtained with stibnite concentrate grade of 46.15% Sb and recovery of 95.04% with copper sulfate,ferric sulfate and ferrous sulfate( mass mixing ratio is 1 ∶ 1 ∶ 1) as the activator,with butyl xanthate +MA-1(quality mixture ratio of 2 ∶ 3) as the collector,and by a closed-circuit flotation with one roughing,two stages of scavenging and three stages of cleaning.The experimental results showed that copper sulfate + ferrous sulfate + ferrous sulfate is a good lead-free activator for flotation of stibnite ore.
出处
《金属矿山》
CAS
北大核心
2017年第3期77-80,共4页
Metal Mine
基金
国家自然科学基金项目(编号:50864001)
广西科学研究与技术开发计划重大专项(编号:桂科重1298002-4)
关键词
辉锑矿
硝酸铅
无铅活化剂
硫酸铜+硫酸铁+硫酸亚铁
Stibnite
Lead nitrate
Lead-free activator
Copper sulfate + ferrous sulfate + ferrous sulfate
