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Vol.42, No.12, 1034 ~ 1039, 2004
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| Title |
| Separation of Iron and Nickel from a Spent Etching Solution by Solvent Extraction using Mixer-settler |
| 이만승 Man Seung Lee , 이경주 Kyoung Joo Lee , 이진영 Jin Young Lee , 안재우 Jae Woo Ahn , 오영주 Young Joo Oh |
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| Abstract |
| Solvent extraction and stripping experiments were conducted to separate iron from a spent FeC13 etching solution containing nickel. In the operation of mixer-settler, 7 extraction stages with 1.0 M Alamine336 in toluene, led to 98% extraction percentage of iron at equal phase ratio, when the flow rate of organic and aqueous were 35 mL/min and 5 mL/min, respectively. At equal phase ratio of aqueous to organic, 10 stripping stages with 0.01 M HC1 solution resulted in 99% stripping percentage of iron when the flow rate of stripping solution and loaded organic were 5 mL/min and 35 mL/min, respectively. The concentration of iron in the stripped solution was 133 g/L and this solution could be reused in the etching of nickel lead frame. (Received June 15, 2004) |
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| Key Words |
| Etching solution, Iron, Nickel, Separation, Mixer-settler |
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