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.
出处
《有色金属（冶炼部分）》
CAS
北大核心
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)
关键词
难处理金精矿
离子交换树脂
浸出
吸附
refractory gold concentrate
ion exchange resin
leaching
adsorption
