CAJ | 학술논문

内蒙古某铅锌矿石铅、锌品位分别为1．62%、5．98%,伴生银品位为19．60 g/t,主要铅锌矿物方铅矿、闪锌矿嵌布粒度均较粗。为确定该矿石的开发利用工艺流程,进行了选矿试验研究。结果表明,在磨矿细度为-0．074 mm占75%的情况下,采用1粗2扫—粗精矿再磨后2次精选选铅、选铅尾矿1粗4精2扫选锌,中矿顺序返回流程处理该矿石,最终可获得铅品位为56．65%、铅回收率为83．85%、含银536．55 g/t、银回收率为65．70%的铅精矿,以及锌品位为47．74%、锌回收率为90．61%、含银44．66 g/t、银回收率为25．86%的锌精矿。试验确定的工艺流程可作为该矿石的合理开发利用流程。
내몽고모연자광석연、자품위분별위1．62%、5．98%,반생은품위위19．60 g/t,주요연자광물방연광、섬자광감포립도균교조。위학정해광석적개발이용공예류정,진행료선광시험연구。결과표명,재마광세도위-0．074 mm점75%적정황하,채용1조2소—조정광재마후2차정선선연、선연미광1조4정2소선자,중광순서반회류정처리해광석,최종가획득연품위위56．65%、연회수솔위83．85%、함은536．55 g/t、은회수솔위65．70%적연정광,이급자품위위47．74%、자회수솔위90．61%、함은44．66 g/t、은회수솔위25．86%적자정광。시험학정적공예류정가작위해광석적합리개발이용류정。
A lead-zinc ore in Inner Mongolia with zinc of 1. 62%,and lead of 5. 98%,contains associated silver grade is 19. 60 g/t,in which main galena,sphalerite are coarsely disseminated. In order to realize the high efficient exploitation and uti-lization of the resources, beneficiation tests of the ore were made. Results showed that under the grinding fineness of 75%-0. 074 mm,lead concentrate with lead grade of 56. 65% and lead recovery of 83. 85%,silver grade of 536. 55 g/t and silver recovery of 65. 70%,and zinc concentrate with zinc grade of 47. 74%,zinc recovery rate of 90. 61% and silver grade of 44. 66 g/t and silver recovery of 25. 86% were obtained respectively by the process of lead concentration by one roughing,two scaven-ging and coarse concentrate regrinding,then two cleaning,zinc concentration by one roughing,four cleaning and two scaven-ging,and the rest middlings back to the flow-sheet in turn. The process test above is the available process of the ore.