Metal recovery from spent stainless steel pickling solutions

Frank Rögener, Miriam Sartor, Andreas Bán, Dirk Buchloh and Tilo Reichardt

Resources, Conservation & Recycling, 2012, vol. 60, issue C, 72-77

Abstract: In stainless steel production a defined surface finish of the products is gained by pickling with aggressive acids. However, pickling lines generate significant amounts of waste products, such as metal oxide particles, metal enriched acid solutions and metal containing neutralization sludge from waste water treatment. Thus, valuable metals, such as chromium and nickel, are irrecoverably lost: Only in Europe, more than 2500t/a of nickel with a current value of 40million €/a are deposited, although nickel is regarded as a strategic metal.

Keywords: Metal recovery; Pickling; Stainless steel; Membrane electrolysis (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:60:y:2012:i:c:p:72-77

DOI: 10.1016/j.resconrec.2011.11.010

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