Recovery of copper from simulated ammoniacal spent etchant using sterically hindered beta-diketone

@inproceedings{Liang2011RecoveryOC,
  title={Recovery of copper from simulated ammoniacal spent etchant using sterically hindered beta-diketone},
  author={Qi-Wen Liang and Hui-ping Hu and Weng Fu and Ting Ye and Qianwang Chen},
  year={2011}
}
Abstract The solvent extraction of copper from simulated ammoniacal spent etchant with 1-(4′-dodecyl)-phenyl-3-tertiary butyl- 1, 3-octadione (HR) was studied, and a model of extraction isotherm was proposed and verified with equilibrium extraction constant. The influence of equilibration time, extractant concentration and phase ratio on the extraction of copper was studied at (298±0.5) K. For the spent etching solutions containing 112.98 g/L Cu, 6 mol/L NH 3 and 1 mol/L NH 4 + , the optimal… CONTINUE READING
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