漂白粉浸出贵州某卡林型金矿的可行性探索  

Feasibility Study for Leaching of A Carlin Type Gold Deposit in Guizhou Province by Bleaching Powder

作　　者：管桂超 王芹[1,2,3] 唐道文 陈亮[1] 晋克勤 GUAN Gui-chao;WANG Qin;TANG Dao-wen;CHEN Liang;JIN Ke-qin(College of Materials and Metallurgy,Guizhou University,Guiyang 550025,Guizhou,China;Guizhou Engineering Research Center for Comprehensive Utilization of Metallurgical Resources,Guiyang 550025,Guizhou,China;Guizhou Provincial Key Laboratory of Metallurgical Engineering and Process Energy Conservation,Guiyang 550025,Guizhou,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]贵州冶金资源综合利用工程研究中心,贵州贵阳550025 [3]贵州省冶金工程与过程节能重点实验室,贵州贵阳550025

出　　处：《矿冶工程》2018年第4期91-93,共3页Mining and Metallurgical Engineering

基　　金：贵州省科学技术基金项目(黔科合J字[2010]2003)

摘　　要：采用漂白粉配制浸出液,对贵州某卡林型金矿进行了浸出实验,考察了漂白粉用量、浸出时间、液固比、浸出温度和氢氧化钠用量对金浸出的影响。结果表明,取原矿100 g,漂白粉(有效氯55%)65 g,温度30℃,浸出时间4 h,氢氧化钠22.5 g,液固比5∶1,金浸出率达59.46%。漂白粉可实现卡林型金矿的有效浸出,但浸出率尚不能满足工业要求。A leaching experiment was carried out for a Carlin type gold deposit in Guizhou Province by using bleaching powder solution as leach solution.Effects of dosage of bleaching powder,leaching tim e,liquid/solid ratio,leaching temperature,as well as dosage of sodium hydroxide on gold leaching were investigated.It is shown that leaching test of 100 g raw ore at a temperature of 30℃for 4 h,with 65 g bleaching powder(5 5%effective chlorine),22.5 g sodium hydroxide and liquid/solid ratio at 5:1,resulted in the gold leaching rate at 59.46%.It is concluded that an effective leaching of Carlin type gold deposits can be actualized with bleaching powder,but the leaching rate still can't meet the industrial requirements.

关 键 词：氯化法 漂白粉 卡林型金矿 浸出 金 

分 类 号：TF111[冶金工程—冶金物理化学]