An Electrochemical Procedure for Copper Removal from Regenerated Pickling Solutions of Steel Plants

Date

2018-03-15

Author

Karakaya, Esra
Aras, Mustafa Serdal
ERDOĞAN, METEHAN
Karagul, Sedef Cift
Ersoy, Merve Kolay
Karakaya, İshak

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

171
views

0
downloads

Pickling is the treatment of metal surfaces by removing oxide layer, rust, scale, inorganic contaminants or other impurities from ferrous metals, copper or precious metals. A strong inorganic acid such as hydrochloric acid is used for plain carbon or low alloy steel pickling. When the concentration of copper in the pickling solution exceeds about 100 mg/L, reversion may take place and randomly plating of copper onto the steel strips which causes visual incompatibility occur. Furthermore, efficiency of pickling decreases with the increase of copper content. The reversion may be delayed to higher Cu concentrations by adding fresh acid to the line. Increased acid consumption only delays the time to discard the solution but increases the cost and hazardous nature effect on the environment. An experimental electrochemical procedure has been conducted to remove copper from pickling solution to reduce the concentration below 100 mg/L. Within this scope, effects of applied current density, copper concentration and electrolysis duration on copper deposition were studied. Current density was determined as the most effective parameter to remove copper from the regenerated pickling solutions of steel plants.

Subject Keywords

Pickling solution, Copper, Electrochemical treatment, Environmental treatment, Current density

URI

https://hdl.handle.net/11511/46572

DOI

https://doi.org/10.1007/978-3-319-72362-4_24

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Copper removal from regenerated pickling solutions of steel plants Sütcü, Esra; Öztürk, Abdullah; Department of Metallurgical and Materials Engineering (2020) Pickling is a metal surface treatment technique, made by strong inorganic acids to prepare metals for subsequent processes. The process generates a substantial amount of waste acid because large amount of acid is spent during the process. The impact of the waste acid to the environment is noticeable. The waste solution contains the contaminants of the metal surface and it is also a source of valuable products, metal salts and copper. When the concentration of copper in the pickling solution exceeds the lev...
Improved synthesis of fine zinc borate particles using seed crystals Guerhan, Deniz; Cakal, Gaye Oe.; Eroğlu, İnci; ÖZKAR, SAİM (2009-03-01) Zinc borate is a flame retardant additive used in polymers, wood applications and textile products. There are different types of zinc borate having different chemical compositions and structures. in this study, the production of zinc borate having the molecular formula of 2ZnO center dot 3B(2)O(3) center dot 3.5H(2)O Was reexamined by studying the effects of reaction parameters on the properties of product as well as the reaction kinetics. Production of zinc borate from the reaction of boric acid and zinc o...
Application of ab initio methods to secondary lithium batteries Aydınol, Mehmet Kadri; Ceder, G. (1998-01-01) Ab initio methods have started to be widely used in materials science for the prediction of properties of metals, alloys and compounds. These methods basically require only the atomic numbers of the constituent species. Such methods not only provide us with predictions of some of the properties of the material (even before synthesizing it) but also help us in understanding the phenomena that control those properties. The use of ab initio methods in the field of electrochemistry is, however, quite recent and...
Investigation of effect of colemanite addition on copper losses in matte smelting slag Rusen, A.; Geveci, Ahmet; Topkaya, Yavuz Ali; Derin, B. (2012-04-01) In this study, the aim was to reduce copper losses to slag in copper production by using a boron compound, called colemanite (2CaO center dot 3B(2)O(3)center dot 5H(2)O), as flux, besides silica. In order to achieve this purpose, two different matte-slag couples were used; the flash furnace matte-slag obtained from Eti Copper Inc. (EBI.) and a master matte-slag without copper produced synthetically under laboratory conditions. Chemical analyses of flash furnace slag and synthetic master slag were 0.88%Cu-36...
An Electrochemical Procedure to Form Metal Powders from Recycled Hard Particle Embedded Composite Cutting Tools Altunbasak, Tansu; KUL, MEHMET; Karakaya, İshak (2017-06-01) Used valuable particle embedded composite cutting tools, obtained by powder metallurgy techniques by mixing metallic powders with hard, abrasive particles were electrolyzed for reclamation of metallic powders and valuable particles. The effects of copper ion and sulfuric acid concentrations and pH of the electrolyte, current density and temperature on microstructure of produced copper powders were investigated in detail. Copper powders were characterized by X-Ray diffraction (XRD) and scanning electron micr...

Citation Formats

E. Karakaya, M. S. Aras, M. ERDOĞAN, S. C. Karagul, M. K. Ersoy, and İ. Karakaya, “An Electrochemical Procedure for Copper Removal from Regenerated Pickling Solutions of Steel Plants,” 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46572.