贫细微含金褐铁矿石硫脲—炭浆法提金新工艺的研究  

Study on new technology of gold extraction from microgranular limonite ore containing small amount of gold by thioreauCIP process

作　　者：张钦发[1,2] 田忠诚[1,2] 

机构地区：[1]株洲工学院 [2]长沙矿冶研究院

出　　处：《黄金》1999年第4期27-29,共3页Gold

摘　　要：介绍了浏阳七宝山贫细微含金褐铁矿石硫脲—炭浆法提金新工艺研究及工艺流程。着重研究了椰壳炭对金的吸附及其对吸附和浸出的影响因素；同时对其吸附动力学进行了探讨。研究结果表明：对贫细微含金褐铁矿石采用硫脲—炭浆法提金新工艺，浸吸时间短（共６ｈ），其金浸出率８６％，炭吸附率９８％，解吸率９８％，使金的总回收率达８２％，硫脲单耗为８００ｇ／ｔ。New technique of extraction of gold from microgranular limonite ore containing small amount of gold by thioreauCIP process is introduced in this paper.The adsorption of gold by activated carbon of coconut shell and factors of influencing adsorption and gold leaching are emphatically studied in detail.The kinetics of adsorption of gold on activated carbon is also discussed.Results show that extracting gold from microgranular limonite ore containing small amount of gold by using the new technique,the leaching rate of gold is 86%,adsorption rate of gold is 98%,desorption rate of gold is 98%,total recovery rate of gold is 82%,the unit consumption of thioreau is 800g/t

关 键 词：硫脲 含金褐铁矿石 炭吸附 提金 金矿石 

分 类 号：TD953[矿业工程—选矿] TF831.032[冶金工程—有色金属冶金]