现代矿业
現代礦業
현대광업
Modern Mining
2015年
8期
74-75,86
,共3页
硫酸渣%酸浸%助浸剂
硫痠渣%痠浸%助浸劑
류산사%산침%조침제
Pyrite cinder%Acid leaching%Leaching aid
某硫酸渣-0.043 mm 占65%,铜品位为0.81%,其中硫酸铜占总铜的40.74%,自由氧化铜占总铜的30.87%,硫化铜占总铜的8.64%,结合铜占总铜的19.75%,属宝贵的二次资源。为开发利用该二次资源,采用硫酸酸浸工艺进行了铜回收试验。结果表明,硫酸渣在不磨矿、浸出酸度为18%,浸出时间为4 h,液固比为4∶1,浸出温度为50℃,搅拌转速为500 r/min,BKJ 用量为3%的情况下浸出,铜浸出率可达78.46%。
某硫痠渣-0.043 mm 佔65%,銅品位為0.81%,其中硫痠銅佔總銅的40.74%,自由氧化銅佔總銅的30.87%,硫化銅佔總銅的8.64%,結閤銅佔總銅的19.75%,屬寶貴的二次資源。為開髮利用該二次資源,採用硫痠痠浸工藝進行瞭銅迴收試驗。結果錶明,硫痠渣在不磨礦、浸齣痠度為18%,浸齣時間為4 h,液固比為4∶1,浸齣溫度為50℃,攪拌轉速為500 r/min,BKJ 用量為3%的情況下浸齣,銅浸齣率可達78.46%。
모류산사-0.043 mm 점65%,동품위위0.81%,기중류산동점총동적40.74%,자유양화동점총동적30.87%,류화동점총동적8.64%,결합동점총동적19.75%,속보귀적이차자원。위개발이용해이차자원,채용류산산침공예진행료동회수시험。결과표명,류산사재불마광、침출산도위18%,침출시간위4 h,액고비위4∶1,침출온도위50℃,교반전속위500 r/min,BKJ 용량위3%적정황하침출,동침출솔가체78.46%。
There is 0.81% Cu a pyrite cinder with particle size of is 65% passing 0.043 mm.Cop-pers exist in copper sulfate,free copper oxide,copper sulfide,binding copper accounted for 40.74%, 30.87%,8.64%,and 19.75% respectively.It′s a precious secondary resource.Copper recovery by sulfuric acid leaching process was conducted for development and utilization of the resource.The results indicated that,copper leaching rate can reach 78.46%,at leaching acidity of 18%,leaching time of 4 h,liquid-solid ratio of 4∶1,leaching temperature of 50 ℃,stirring speed of 500 r/min,BKJ dosage of 3%,and with no grinding operation.