The effect of the galvanic interaction between anodic chalcopyrite and cathodic pyrite was investigated by long-term electrochemical measurements of the galvanic coupling current and verified by chemical leaching and bioleaching. For the first time galvanic corrosion measurements (in the absence and in the presence of microorganisms) over days are reported. Combined microbial and galvanic leaching of chalcopyrite showed increased Cu recovery in the presence of pyrite. Corrosion resulted in mineral dissolution depending on multiple parameters (like metal corrosion). However, maximal chalcopyrite dissolution via bioleaching occurred in the presence of a large cathodic pyrite surface. Highest copper recovery was observed in case of high rest potential differences between galvanically coupled minerals (pyrite coupled with copper concentrate). A comparison of electrochemical data of this study with scientific literature revealed a wide range of rest potential data for a single metal sulfide. Fundamental research on galvanic interaction of mixed mineral systems need to focus on unified experimental parameters to allow a comparison.

通过长期电化学测量电耦合电流研究了阳极黄铜矿与阴极黄铁矿之间的电相互作用的影响，并通过化学浸出和生物浸出进行了验证。首次报告了几天内的电偶腐蚀测量（在不存在和存在微生物的情况下）。黄铜矿的微生物和有机相结合浸出表明，在黄铁矿存在下，铜的回收率增加。腐蚀导致矿物溶解，取决于多个参数（例如金属腐蚀）。然而，在大的阴极黄铁矿表面存在下，通过生物浸出的黄铜矿最大溶解。在电耦合矿物（黄铁矿与铜精矿耦合）之间存在较高的静电势差时，可以观察到最高的铜回收率。这项研究的电化学数据与科学文献的比较表明，单一金属硫化物的静息电位数据范围广泛。混合矿物系统的电流相互作用的基础研究需要集中于统一的实验参数以进行比较。