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http://dx.doi.org/10.7464/ksct.2017.23.3.279

The Optimization of Solvent Extraction Process of Iron Chloride Etching Waste Solution  

Park, Il-Jeong (Advanced Materials and Processing Center, Institute for Advanced Engineering (IAE))
Kim, Dae-Weon (Advanced Materials and Processing Center, Institute for Advanced Engineering (IAE))
Kim, Geon-Hong (Advanced Materials and Processing Center, Institute for Advanced Engineering (IAE))
Chae, Hong-jun (Advanced Materials and Processing Center, Institute for Advanced Engineering (IAE))
Lee, Sang-Woo (KMC Co., Ltd.)
Jung, Hang-Chul (Advanced Materials and Processing Center, Institute for Advanced Engineering (IAE))
Publication Information
Clean Technology / v.23, no.3, 2017 , pp. 279-285 More about this Journal
Abstract
In this study, a new organophosphorus acid-based solvent (KMC-P) from KMC Co., Ltd. was used for the recovery of the iron chloride etching waste solution. In order to increase the extraction efficiency for the new solvent in the solvent extraction process, we selected the process variables and conducted the optimization experiment according to the DOE to investigate the correlation between the variables. Solvent concentration, pH, and O/A ratio were found to be factors affecting extraction and stripping efficiency. The optimum stripping efficiency was 69.7% when the solvent concentration was 29.4 wt%, the HCl addition amount was 0 mL, and the O/A ratio was 7, and the reliability was more than 86%.
Keywords
Nickel recovery; Solvent extraction; Extraction efficiency; Stripping efficiency; Optimization;
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