摘要
金精矿浸出尾渣中金品位为3.61 g/t,其中93.74%被铁、硫、石英微细包裹,难以回收,采用低温常压硝酸预氧化处理后再氧化炭浸工艺,原渣品位从3.61 g/t降为1.08 g/t,金浸出率70.25%。
The gold grade of the gold concentrate leaching tailings is 3.61 g/t, and about 93.74% of the gold minerals was micro wrapped by iron, sulphur and quartz, so it is difficult to be recycled. Pre- oxidation treatment was used by nitric acid under low temperature and normal pressure, then carbonate leaching process was adopted. Finally the grade of tailings decreased from 3.61 g/t to 1.08 g/t, with leaching rate of 70.25%
出处
《有色金属（选矿部分）》
CAS
北大核心
2014年第2期49-51,共3页
Nonferrous Metals（Mineral Processing Section）
关键词
微细包裹
预处理
回收率
micro wrapped
pre-treatment
recovery
