摘要
目前废旧电脑的产生量日益增加,废旧电脑主板中含有丰富的可回收金属资源,对其回收处理意义重大。本实验采用硫脲对电脑主板中的金进行浸取研究,在硫脲浸金过程中,主要通过调整时间、硫酸浓度、Fe3+浓度,考察对浸金的影响。研究结果表明:当t=60 min、硫酸浓度为15%、Fe3+浓度为0.45%时,金的浸出最大,可达91.14%。因硫脲具有浸金速率快,试剂易再生,对环境污染小、反应条件易控制等优点适于应用于实际生产。
Currently the production of waste computer is increasing, the waste computers keyboard contains rich resources of recoverable metal, so recycling that is significant, the experimental use thiourea to leaching gold of the waste computer keyboards to study. In process of the leaching gold of thiourea, the study on the impact of the leaching gold through adjusting time, CH2SO4 and CFe^3＋ The results showed that： The largest gold leaching is 91.14% when 60 min, CH2SO4 is 15%, and CFe^3＋. is 0. 45%. Thiourea suitable for the actual production because of thiourea leaching gold rate is fast, easy reagent regeneration, pollution of the environment is little, easy to control reaction conditions.
出处
《环境科学与管理》
CAS
2008年第2期49-52,57,共5页
Environmental Science and Management
