PbS的FeCl_3体系发电浸出过程探索

Exploration of Electrogenerative Leaching of PbS with FeCl_3

将化学发电原理应用于人工合成PbS的FeCl3浸出过程. 采用双电池技术及依文思图研究影响发电浸出的各种因素. 结果表明,发电浸出过程在浸出产物的同时还可获得一定的电能,发电浸出体系的内阻是功率输出的关键要素;温度影响发电浸出过程,PbS的FeCl3体系发电浸出过程表观活化能为18.26 kJ/mol;FeCl3和NaCl的浓度以一定的规律影响发电浸出过程.

The principle of electrical power generation is applied to FeCl3 leaching of synthetic PbS in this study. The dual cell technique and Evans diagram were introduced to examine the factors that influenced the electrogenerative leaching, such as composition of PbS electrode, agitation, temperature, FeCl3 and NaCl concentrations. It is confirmed that certain quantity of electrical energy in addition to the leached products can simultaneously acquired in the electrogenerative leaching process. The internal resistance of the electrogenerative leaching system is the key factor to power output and temperature affects the output of electrogenerative leaching. The apparent activation energy is determined as 18.26 kJ/mol for FeCl3 leaching of synthetic PbS. Higher FeCl3 and NaCl concentrations affect the electrogenerative leaching process favorably.