Electrolytic Regeneration of Iron (III) Chloride Etchant I. Batch Electrolysis

Tanimura, Yuji; Itoh, Takahiro; Kato, Masayoshi; Mikami, Yasuie

doi:10.5796/kogyobutsurikagaku.63.737

Denki Kagaku1961

1995

DOI: 10.5796/kogyobutsurikagaku.63.737

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Electrolytic Regeneration of Iron (III) Chloride Etchant I. Batch Electrolysis

Yuji Tanimura¹,

Takahiro Itoh²,

Masayoshi Kato³

et al.

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2012

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A Study on Electrochemical Regeneration of Waste Iron-chloride Etchant and Copper Recovery

Kim¹,

Lee²,

Kang³

et al. 2012

Clean Technology

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주제어 : 전기화학적 재생, 염화철, 폐식각액, 구리 회수, 탄소전극 Abstract : Electrochemical regeneration of the iron chloride waste solution from PCB etching reduces environmental contamination and produces copper as by-product, so the economic feasibility is high. But iron chloride waste solution contains iron and copper and the reactions occurring in the electrolytic cell are complicated. In this work, the oxidation of iron chloride and copper deposition were examined through batch electrolysis and the optimum conditions of the process parameters were found. The oxidation of ferrous chloride was achieved easily to the desired level. The copper deposition efficiency was high in the reaction using the carbon cathode when the copper density was 12 g/L with the electric current density of 350 mA /cm 2 , and the ratio of the Fe 2+ ion was high. In addition, the possibility of the scale-up was confirmed in continuous operation of bench reactor using the optimum conditions obtained.

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A Study on Electrochemical Regeneration of Waste Iron-chloride Etchant and Copper Recovery

Kim¹,

Lee²,

Kang³

et al. 2012

Clean Technology

View full text Add to dashboard Cite

show abstract

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Electrolytic Regeneration of Iron (III) Chloride Etchant I. Batch Electrolysis

Cited by 1 publication

References 0 publications

A Study on Electrochemical Regeneration of Waste Iron-chloride Etchant and Copper Recovery

A Study on Electrochemical Regeneration of Waste Iron-chloride Etchant and Copper Recovery

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