难处理硫化矿生物湿法冶金研究进展（Ⅰ）微生物氧化工艺技术研究

生物湿法冶金技术与传统矿业氧化工艺相比，成本低、无污染，具有广阔的工业应用前景。本文着重评述了国内外在浸矿微生物、培养基的优化、细菌的接种量、温度、酸度、矿石粒度、矿浆浓度、浸出液中As(Ⅲ)和As(Ⅴ)浓度等方面的研究进展。     

生物湿法冶金的回顾与展望

概述了生物湿法冶金的主要进展，讨论了生物湿法冶金今后的发展趋势。     

Electrochemical behavior of chalcopyrite in presence of Thiobacillus ferrooxidans

1 Introduction The bioleaching research has a great progress in metallurgy industry. A significant number of commercial applications have emerged and are able to compete with conventional processing, especially the application for the copper recovery. Fur…     

Bacterial Mining

Abstract

Bacterial mining (biomining) represents the use of microorganisms to leach out metals from ores or mine tailings (wastes), followed by the subsequent recovery of metals of interest from the leaching solution. This leaching of metals from ores is a natural process, which can be considerably accelerated by inducing and/or supporting the microbial activity of certain species with the ability to solubilize metals. This process is usually known as biosolubilization and constitutes the basis of many remedial technologies for environments polluted with metals, and also providing the additional potential for recovery of any particular metal of interest. Bacterial mining is part of a vast research field that emerged relatively recently as a border science called biohydrometallurgy. This research field became very important in the context of raw material crises on which technological crises is grafted. In other words, the conventional technologies operating for metal extraction, mainly in the case of lower grade ores, are generally disruptive and less cost-efficient when compared to biomining. Thus, during the last 10–15 years, the interest in biohydrometallurgy, and subsequently in bacterial mining, has increased. The focus has been on two main topics—mineral bioprocessing and biorecovery.     

铜的生物湿法冶金在德兴铜矿的应用

结合德兴铜矿堆浸厂的生产与研究情况,分析了采用细菌浸出－萃取－电积工艺生产铜过程中存在的问题并提出了解决方法,探讨了该工艺的发展方向与前景。     

Biohydrometallurgy of secondary metal resources: a potential alternative approach for metal recovery

Research on biohydrometallurgy of secondary metal resources is primarily focused on the leaching of valuable metals. For secondary metal resources biological processing can be an economically more effective and environmentally friendlier alternative to traditional hydrometallurgical and pyrometallurgical processes. Therefore, biohydrometallurgy is a rapidly evolving biotechnology that has already provided revolutionary solutions to old problems associated with recovery of metals by conventional pyrometallurgy and chemical metallurgy. This review evaluates various processes of recovery of metals from waste materials and commercial applications are discussed. Case studies and future technology directions are reviewed. © 2013 Society of Chemical Industry     

细菌对铜矿生物浸出液粘度的影响研究

用Ubbelohde粘度计对紫金山铜矿生物浸出液在25℃时的粘度进行了测定，对有菌和无菌两种浸出液的粘度值进行了比较，发现两者有较大的差别，无菌浸出液的粘度明显高于有菌浸出液的粘度，主要是由于在无菌浸出液中，存在大量的Fe^3＋离子，而Fe^3＋离子所带电荷较大，使得溶液的带电密度增大，在离子的第一溶剂化层中有较强的定位效应，这种效应使溶液粘度增加的作用变大。同时将有菌和无菌浸出液的粘度值用线性回归方法进行了分析，发现粘度值随浸出液中离子浓度的增加而增大，且呈较好的线性关系。粘度的测定为生物冶金中减少第三相的生成，溶液纯化和分离研究提供了理论基础。     

浸矿微生物的研究进展

本文综述了主要浸矿微生物的性质、分类地位、培养条件以及在生物冶金方面的应用及研究进展,涉及到的微生物有嗜酸氧化亚铁硫杆菌、嗜酸氧化硫硫杆菌、氧化亚铁钩端螺旋菌、硫化叶菌属及硫化芽孢杆菌属.     

微生物浸矿强化技术研究进展

介绍了微生物浸矿强化技术在浸矿菌株驯化、生物反应器研制及浸矿过程方面的应用状况及研究进展,指出了今后的研究方向。