从难处理金精矿氯化浸金溶液中吸附金  

Gold Adsorption from Chlorination Leaching Solution of Refractory Gold Concentrate

作　　者：金创石[1,2] 张廷安[1] 曾勇[1] 洪正秀[1,2] 

机构地区：[1]东北大学材料与冶金学院,多金属共生矿生态化利用教育部重点试验室,沈阳110819 [2]金策工业综合大学物理化学教研室,朝鲜平壤999093

出　　处：《有色金属（冶炼部分）》2012年第3期39-42,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家“十一五”科技支撑计划项目(2008BAB34B01);国家自然科学基金资助项目(51004033,50974035,51074047)

摘　　要：对国内某难处理金精矿高压氧化渣进行氯化浸出及吸附试验。结果表明,在下述最佳条件下浸金率达到96.5%:次氯酸钠浓度10g/L、pH=4、氯化钠浓度75g/L、温度40℃、液固比3∶1、搅拌速度300r/min、时间120min。浸金液在室温采用1g/L的717阴离子交换树脂吸附30min,金吸附率达到99.2%。该方法污染少、操作简单、反应速度快。Chlorination leaching and adsorption of gold on high-pressure oxidation residue of a domestic refractory gold concentrate were investigated.The results show that the gold leaching rate is 96.5% under the optimum conditions including sodium hypochlorite concentration of 10 g/L,pH=4,sodium chloride concentration of 75 g/L,temperature of 40 ℃,ratio of liquid to solid of 3∶1,stirring speed of 300 r/min and time of 120 min.The gold absorption rate is 99.2% when the above gold leaching solution is absorbed with 1 g/L 717 anion exchange resin at room temperature for 30 min.This process is simple,rapid with less pollution.

关 键 词：难处理金精矿 离子交换树脂 浸出 吸附 

分 类 号：TF831[冶金工程—有色金属冶金] TF804.3