现代矿业
現代礦業
현대광업
Modern Mining
2015年
8期
63-64,67
,共3页
金矿%毒砂%黄铁矿%浮选
金礦%毒砂%黃鐵礦%浮選
금광%독사%황철광%부선
Gold ore%Arsenopyrite%Pyrite%Flotation
青海海西五龙沟金矿石含金3．94 g／t，金主要以超显微状态存在于毒砂和黄铁矿等金属硫化物中。为高效开发利用该矿石资源，以矿石工艺矿物学研究结果为基础，进行了浮选选矿试验。结果表明，矿石在磨矿细度为－0．074 mm 占75％的情况下，采用1粗2精2扫、中矿顺序返回闭路浮选流程处理，最终可获得金品位为36．42 g／t、回收率为86．66％的金精矿产品，选矿技术经济指标较好。
青海海西五龍溝金礦石含金3．94 g／t，金主要以超顯微狀態存在于毒砂和黃鐵礦等金屬硫化物中。為高效開髮利用該礦石資源，以礦石工藝礦物學研究結果為基礎，進行瞭浮選選礦試驗。結果錶明，礦石在磨礦細度為－0．074 mm 佔75％的情況下，採用1粗2精2掃、中礦順序返迴閉路浮選流程處理，最終可穫得金品位為36．42 g／t、迴收率為86．66％的金精礦產品，選礦技術經濟指標較好。
청해해서오룡구금광석함금3．94 g／t，금주요이초현미상태존재우독사화황철광등금속류화물중。위고효개발이용해광석자원，이광석공예광물학연구결과위기출，진행료부선선광시험。결과표명，광석재마광세도위－0．074 mm 점75％적정황하，채용1조2정2소、중광순서반회폐로부선류정처리，최종가획득금품위위36．42 g／t、회수솔위86．66％적금정광산품，선광기술경제지표교호。
Gold grade of a gold ore in Wulonggou,Qinghai Province,is 3.94 g/t.Gold mainly ex-ists in arsenopyrite,pyrite,etc.metal sulfides in form of ultramicroscopic state.For the efficient exploi-tation and utilization of the ore,based on the ore process mineralogy research results,flotation experi-ments were carried out.Results show that:at the grinding fineness of -0.074 mm accounted for 75%, through one roughing -two cleaning -two scavenging,and middlings back to the flowsheet in turn process,gold concentrate with 36.42 g/t gold and recovery rate of 86.66% was obtained,both the tech-nical and economic indexes are good.
