摘要
某矽卡岩型铜矿原矿含铜0.98%,试验研究通过采用混合用药、延长浮选时间及中矿再磨等工艺优化措施,实现了一段粗磨选矿。在一段磨矿细度-74μm55.2%、中矿再磨细度-74μm81.3%条件下,经"二粗二扫一精"浮选流程,获得铜精矿品位20.37%(Au9.04g/t;Ag93.27 g/t),铜回收率94.40% (Au71.85%;Ag71.78%)的选矿技术指标。
The copper grade are 0.98% of some skarncopper mine. A section of coarse grinding was realized since the experimental study was carried out by using mixed medicine, extended flotation time and re-grinding process optimization measures. The test results showed that under the conditions of grinding fineness -74μm55.2% and middling regrinding fineness -74μm81.3%. By adopting the flotation separation process of two-stage roughing, two-stage scavenging and one-stage cleaning, the final results showed that the grade and recovery rate of Cu in the concentrate were 20.37% and 94.40%, and the grade and recovery rate of Au (Ag) in the concentrate were 9.04 g/t (93.27g/t) and 71.85%(71.78%).
作者
胡正华
HU Zheng-hua(Daye Nonferrous Design and Research Institute Co., Ltd, Huangshi 435005, Hubei, China)
出处
《铜业工程》
CAS
2019年第2期54-60,共7页
Copper Engineering
关键词
粗磨
混合用药
浮选时间
中矿再磨
回收率
coarse grinding
mixed medicine
flotation time
middling regrinding
recovery
