工程科学学报2017，Vol.39Issue(3)：354-359,6.DOI:10.13374/j.issn2095-9389.2017.03.006
碱性氧化铜矿产氨菌浸出特性
Ammonia-producing bacteria leaching feature of alkaline copper oxide ore
摘要
Abstract
To investigate the leaching characteristic of alkaline copper dioxide ore by ammonia producing bacteria, the influence of the ammonia producing bacteria on the ore during the process was analyzed. To expose the possible influence factor, the shaking flask leaching test was carried out by putting alkaline cupric oxide ore from Yunnan separately into five kinds of leaching solutions, such as bacteria-containing, bacteria-removing inoculums and ammonia solution. Experimental results indicate that the bacteria have a strong ability at producing ammonia and the highest ammonia mass concentration reaches 8. 93 g·L-1 . Ammonia production is positive-ly correlated with the content of bacteria. The bacteria leach mineral mainly through producing ammonia, besides, the bacteria and their metabolites can also effect. The leaching capacity is in the order of bacteria ammonia > bacteria > bacterial metabolites, and the ratio of the three is 12:5:4.关键词
铜矿处理/生物浸矿/浸出动力学/氨/碱性Key words
copper ore treatment/bioleaching/leaching kinetics/alkaline/ammonia分类
矿业与冶金引用本文复制引用
尹升华,谢芳芳,陈勋..碱性氧化铜矿产氨菌浸出特性[J].工程科学学报,2017,39(3):354-359,6.基金项目
国家自然科学基金资助项目(51374035, 51304011) （51374035, 51304011）
全国优秀博士学位论文作者专项资金资助项目(201351) （201351）
国家重点研发计划项目(2016YFC0600704) （2016YFC0600704）
