Recovery of Nickel by Solvent Extraction from Electroplating Rinse Bath Solution


KUL M. , Cetinkaya U.

SOLVENT EXTRACTION AND ION EXCHANGE, cilt.28, ss.225-243, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 28 Konu: 2
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1080/07366290903558054
  • Dergi Adı: SOLVENT EXTRACTION AND ION EXCHANGE
  • Sayfa Sayıları: ss.225-243

Özet

Development of a complete solvent extraction process at the laboratory scale for recovering nickel from nickel electroplating second rinse bath solution (NESRBS) by solvent extraction route using DEHPA and LIX 984N-C dissolved in commercially available kerosene has been investigated. An electrolyte from NESRBS containing,48 g/L nickel, suitable for recycle to the nickel electroplating bath, was generated by 0.5M DEHPA in commercial kerosene at the O/A ratio of 1/5 and 5.00 +/- 0.25 equilibrium pH value with two-stage counter-current extraction. Stripping of loaded organic was done using nickel electroplating first rinse bath solution (16 g/L Ni) with 150 g/L sulfuric acid addition at two-stage counter-current stripping process. LIX 984N-C can also be used for this purpose, but it is not recommended due to a solid stabilized emulsion formation at high equilibrium pH value and nickel concentration. A complete flow sheet of 0.5 M DEHPA extraction process for the recovery of nickel from NESRBS was developed.