铜蓝精矿的生物浸出(英文)  

Bioleaching of Covellite By Using Pure and Mixed Culture of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus

作　　者：程海娜[1] 胡岳华[1] 马恒[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《现代生物医学进展》2007年第6期805-807,共3页Progress in Modern Biomedicine

基　　金：国家"973"基金(2004CD619201);国家自然科学创新群体基金(50621063)

摘　　要：采用两种嗜酸硫杆菌(嗜酸氧化亚铁硫杆菌和喜温硫杆菌)对铜蓝进行生物浸出,实验在有或没有4 g/L硫酸亚铁pH 2．0、150转/分、35℃的三角瓶中进行。实验结果表明:用两种菌混合浸出的铜几乎等于嗜酸氧化亚铁硫杆菌单独浸出的铜;另外,亚铁的加入能提高铜的浸出。Covellite oxidation was evaluated with two addophilic thiobaciUi that are important in bioleaching processes. The experiments were carried out in shake flasks in the absence and presence of 4 g/L Fe^2＋ （as ferrous sulphate） at pH 2.0, 150 rpm and 35 ℃. The tests showed that the copper extraction by the Addithiobacillus ferrooxidans oalmre was nearly the same as that by the mixed culture of Acidithiobacillus ferrooxidans and AcidithiobaciUus caldus. On the other hand, additional iron dearly improved Cu leaching.

关 键 词：铜蓝 生物浸出 嗜酸氧化亚铁硫杆菌 喜温硫杆菌 

分 类 号：Q939.99[生物学—微生物学]