CAJ | 학술논문

在电镀行业中金是常用的贵金属之一,提高含金污泥金的回收率一直是研究的热门。论文用酸性硫脲从电镀污泥处理后的树脂中回收金,并探讨了该方法的最佳工艺条件。结果显示,在40℃恒温搅拌条件下用FeCl3.6H2O（加入量2 g/L溶液）、硫脲（浓度1.0 g/L）的混合溶液（pH=1.5）浸取12 h,浸金率最高,可达85%。
재전도행업중금시상용적귀금속지일,제고함금오니금적회수솔일직시연구적열문。논문용산성류뇨종전도오니처리후적수지중회수금,병탐토료해방법적최가공예조건。결과현시,재40℃항온교반조건하용FeCl3.6H2O（가입량2 g/L용액）、류뇨（농도1.0 g/L）적혼합용액（pH=1.5）침취12 h,침금솔최고,가체85%。
Gold is one of the widely used precious metals in plating industry,this project is aimed to improve the recovery of the sludge containing gold.This paper is focused on gold extraction by leaching plating sludge with acidic thiourea solution.And it is indicated that:under the leaching conditions of pH=1.5,leaching temperature 40 ℃,leaching time 12 h,and 2 g FeCl3.6H2O and 10 g thiourea added per liter solution,the highest leaching rate of gold can be obtained up to 85 %.