Experimental study of pyrite–galena mixed potential in a flowing system and its applied implications

	Experimental study of pyrite–galena mixed potential in a flowing system and its applied implications
	Qingyou Liu; Heping Li; Li Zhou
	2009
发表期刊	Hydrometallurgy
卷号	96 期号:1 页码:132-139
其他摘要	A three-electrode system was adopted to investigate the corrosion current density and mixed potential of unstrained pyrite–galena and strained pyrite–galena galvanic cells in a flowing system. The results showed that when present in the same solution, strained pyrite produces a lower electrode potential than that of the galena electrode because of its strain energy; moreover, increasing the sodium sulfate solution concentration causes only slight fluctuations in the corrosion current density and mixed potential, while these values clearly increased with increasing ferric sulfate solution concentrations. In addition, for the sodium sulfate solution or ferric sulfate electrolyte, the faster the flow rate, the bigger the corrosion current density and the more positive the mixed potential of the galvanic cell. The experimental results are significant for hydrometallurgy and for controlling environmental pollution in mining activities. By using the galvanic model, mixed potential theory and the Butler–Volmer equation, the experimental results were explained theoretically.
关键词	Unstrained Pyrite Strained Pyrite Galena Galvanic Interaction Flowing System Corrosion Current Density Mixed Potential
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/4498
专题	地球内部物质高温高压实验室_地球内部物质高温高压实验室_期刊论文
推荐引用方式 GB/T 7714	Qingyou Liu,Heping Li,Li Zhou. Experimental study of pyrite–galena mixed potential in a flowing system and its applied implications[J]. Hydrometallurgy,2009,96(1):132-139.
APA	Qingyou Liu,Heping Li,&Li Zhou.(2009).Experimental study of pyrite–galena mixed potential in a flowing system and its applied implications.Hydrometallurgy,96(1),132-139.
MLA	Qingyou Liu,et al."Experimental study of pyrite–galena mixed potential in a flowing system and its applied implications".Hydrometallurgy 96.1(2009):132-139.

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